Showing posts with label Motorcycle History. Show all posts
Showing posts with label Motorcycle History. Show all posts

Sunday, November 29, 2015

Ride, Modern Classics Motorcycle In A Game !

Ride is the latest attempt to simulate the energy and intensity of riding motorcycles in the form of a computer game. 


Ride, Modern Classics Motorcycle In A Game


Honestly, I loving both sitting on a sofa playing games and also riding motorcycles, it would be interesting to see how I would enjoy Ride on my Sony's PS4. After all, for lazy gits like me, it means I can indulge in motorcycling when it’s raining or in the winter…


Although the game is based heavily on the modern range of motorcycles (it features more than 100) there are also some pretty cool unlockable ‘modern classics’ that make us drool. These include Honda’s CBR900RR Original Fireblade of 1992, Yamaha’s OW-01 from the late 1980s, the Aprilia RSV1000 Mille of 1998, the 1996 Suzuki GSX-R750 SRAD and Honda’s oval-pistoned NR750 from the early 1990s.


Ride, Modern Classics Motorcycle In A Game


I bought the game just before deadline for this issue and so far I’m loving it : you can customise your rider in all manner of kit and make your motorcycle unique too. You’ve also a wide range of tracks to choose from, including our faves Donington Park and a lovely "North Wales" road circuit.

While it’s not realistic in any way at all (basically I’m a riding god on this game) it is a splendid bit of fun which is well worth a look and cheaper than buying an NR750 at least… So, buy this game for your kids/grandkids/great-grandkids and then hog the controller. It’s a blast!

Ride is out now and available for PC, Xbox 360, Xbox One, PS3 and PS4.
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Suzuki GSX1100E, Superb Classic Four !

Suzuki really stirred up the pot with the GSX1100E of 1980, if you wanted sphincter-searing acceleration at a knock down price the GSX had it all covered.


Suzuki GSX1100E



Suzuki sat back to watch the combined efforts from Honda, Yamaha and Kawasaki flounder in its wake until (with the opposition closing the gap) the EFE was born in 1984, and it had no intention of taking any prisoners.

The GSX1100E motor is astoundingly simple : it has Inline four cylinders, five speeds and one destination, the top of the heap. It builds on the principles established as far back as the GT750 water-cooled two-stroke. The transmission layout is very similar, this design carried on to the GS750, the GS1000 and then the GSX1100.



The crank and gearbox input and output shaft centres are shared with its four-stroke buddies, the basic design of the camshaft drive chain and tensioners is a simple evolution of its forebears. That’s the trick that Suzuki pulled off for the umpteenth time, no crazy ideas, just good old simplicity and brilliance of design that don’t hanker after adulation or adoration, but that does tend to follow after the first time you crank open the throttle on one!

Around the time that the 100 horsepower gate swung open the Big 4 were all capable of producing bikes that could transcend this hurdle but there were many problems which befell them. There were chocolate cams and recalcitrant camchain tensioners and second gear selectors that did and then didn’t.

Big problems emerged when bikes exceeded 200 kilos and 100 HP. But the EFE tore up that risk assessment, and then proceeded to tear up the quarter mile with Pee Wee Gleason on board in mid 10 second order at close to 130mph. These numbers were pretty impressive back then... wait a mo, they’re pretty impressive now ! The reason for this massive rush of ballbusting torque is simple, the development that Suzuki did on the GSX1100 was just the starter, when the main course rolled up the EFE had a totally sorted carb/cam/valve/piston/exhaust combo.


Suzuki GSX1100E


The carbs were just big enough to allow in excess of 110 HP but small enough to encourage high intake velocity which gave near perfect atomisation of the intake charge, hence great midrange and throttle response regardless of gear position or the position of the tacho needle.

The cams, likewise didn’t need crazy lifts or excessive spring pressures to get the job done, just enough was okay thanks. The intake valves increased in diameter by 1mm from 27 to 28mm but the exhaust stayed the same at 23mm. The 76mm pistons are lovely, tough with slim rings, the forgings (not castings) are neatly ribbed under the crown for strength and heat dissipation.

Yet again Suzuki pulled a rabbit out of their hat here, generally speaking, alloys used for casting use a higher proportion of silicone in their mix. This reduces the coefficient of expansion thus allowing tighter piston to wall clearances, the ART alloy used for the forged pistons still allows minimal clearances which were previously unheard of. It might be worth mentioning here that Suzuki’s GS1000R F1 racebikes used pistons crafted by Fred Hadleigh at Omega in the West Midlands.

What is truly amazing is the similarity twixt the Omega design and the later factory pistons as installed in the EFE, and yes I am aware that the 1000R was a two-valver and the GSX has four of ’em, the design clues I’m referring to relate to the internal design as opposed to the piston crown.

Vincenzo Piatti pioneered a fully machinable combustion chamber which optimised compression, valve size and flame travel to burn the precious charge in the most efficient way possible. With this single refinement the GSX and its first cousin, the EFE, stomped off into the distance, any gear, any revs, anytime.

Given the fact that there was so much of everything available at relatively low engine speeds, riding an EFE was rapidly recognised as a good way to spend a Sunday afternoon, they start easily, will run on just about any kind of fuel without complaining, they don’t get hot, they have a huge alternator to fire up the similarly huge headlamp and they don’t wilt after a tankful of abuse. Even 30 odd years after its release the EFE has a loyal band of followers that can’t get enough of that torque-nami, sure they dress ’em up with USD forks and trick swingarms (like Colin Peabody’s lovely bike here) but the stuff that sits under that crackle black cam cover is sacrosanct, the beating heart of a true classic.



The architecture that was laid down back then has not changed, particularly in drag racing circles (or should that be straights?) Whatever, EFE-based bikes, with a few tweaks are running over three seconds quicker down the 1320 than Pee Wee ran at Orange County International Raceway all those years ago, sure they have multi-stage lock up clutches and trick auto boxes and digital everything but underneath are still the rock solid design concepts that haven’t been improved on. With capacities of up to 1600cc by virtue of big pistons and stroker cranks it’s unlikely there will ever be a more appropriate basis for this kind of lunacy as slimmer, modern engines afford less room to grow.

So we have a great spread of everything, reliability, simplicity, strength and power. Can’t last can it? And it didn’t, fuel injection, water cooling and Nikasil plated bores changed what had previously been simple and pure into, well, complicated, and we don’t really do complicated. So the EFE continues to co-exist with its younger siblings, I wonder how things will be in another 30 years? I know which one my money’s on.


Suzuki GSX1100E Specifications



Manufacturing : Suzuki Motor Co.

Model : GSX1100E (EFE)

Production Year : 1972 - 1976



Engine : 4-Stroke, Oil-Cooled, Inline 4 Cylinder DOHC 16-Valve

Bore x Stroke : 72 x 66 mm

Cylinder capacity : 1.074 cc

Fuel Supply System : Carburetor Mikuni 34mm

Compression ratio : 9.5: 1

Transmission : 5 - Speed

Ignition : CDI

Starter : Electric Starter

Max Power : 100 HP @ 8.700 RPM

Max Torque : 85,3 N.m @ 6.500 RPM

Top Speed : 227 Km / h



Dimensions L x W x H : 2.255 x 760 x 1.190 mm

Wheelbase: 1.510 mm

Ground Clearance: 152 mm

Dry weight : 237 kg

Fuel tank capacity: 19 L



Frame : Tubular Steel Double Cradle

Front Suspension : 37mm Kayaba Telescopic Fork

Rear Suspension : Kayaba Dual Shock

Front Brakes : Dual Hydraulic Disc 275mm, 2 Pots

Rear Brakes : Single Hydraulic Disc 275mm, 2 Pots

Front Tires : 3:50 - 19

Rear tires : 4.50 - 17

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Motorcycle Events : Ramsgate Sprint Revival

Many years ago the seaside town of Ramsgate in East Kent and its incumbent Sunbeam Motor Cycle Club organised quartermile sprints along the Western Undercliff.


Ramsgate Spring Revival


For 12 years until 1968 the events drew large crowds before the slightly curved seafront course, with its unforgiving cast-iron railings, was deemed too dangerous for use – that was until 2015, as now once again over the weekend of August 15-16 the Undercliff will echo to the sound of race engines.

A short course will allow demonstrations of bikes of the era, including a number that were stars of the original events, to evoke memories of times past.



Ramsgate Spring Revival


On Government Acre, the cliff top area above the course, further attractions will include a static display of bikes organised by the East Kent Classic Motorcycle Club.

Being the town of My Friends birth, he probably will be around should anyone want to meet up, but more interestingly six times world champion Jim Redman will also be at the event. For more informations, you can go to Ramsgate Sprint Revival Official Site.
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Saturday, November 28, 2015

The Evolution of the Ducati Desmo !

Ducati’s first Desmo V-twin was the air-cooled SOHC bevel-drive design that powered Paul Smart to victory in the 1972 Imola 200.That was its competition debut.

It also took Mike Hailwood to his legendary comeback win in the 1978 Isle of Man TT. Replaced by the belt-driven sohc Pantah motor, the Desmo ceased production in the early 1980s. Since then, parts for the thousands of bikes built with this engine have essentially dried up.




Now the world’s leading Ducati bevel-drive engine specialist – Vee Two Australia in Nannup, WA – has addressed the issue by developing a brand-new air-cooled bevel-drive Desmo V-twin engine. Unveiled by company owner Brook Henry and Vee Two’s general manager Andrew Cathcart at Australia’s annual Broadford Bike Bonanza; when fired up the prototype drowned out the circuit’s pits with its incredible sound.


Built From Original Plans





The Vee Two Ritorno Twin (Italian for ‘comeback’) measures 88mm x 74.4mm for a capacity of 904cc, and in racing form is expected to deliver around 120bhp with 63lb-ft of torque. It is in fact a modern re-creation of the ultimate bevel-drive Ducati Desmo V-Twin engine, re-manufactured for sale using the original drawings supplied with the approval of the Ducati factory.

It’s an externally faithful reproduction of the factory NCR race motor used by Mike Hailwood to win the 1978 Isle of Man TT, with the crankcases and other major components sandcast in high-strength heattreated aluminium, with the many external covers cast in magnesium.

While the engine is historically authentic externally, all the internals have been manufactured using modern materials and up-todate design technology,” says Andrew Cathcart.

“But all parts are interchangeable with existing bevel-drive engines, so Ducatisti around the world whose bikes are off the road because they can’t source spare parts for them, will now be able to do so from Vee Two Australia. This design is the ultimate evolution of the bevel-drive Ducati race engine.”


We have put together this first prototype engine as a mule to allow us to commence our testing regime,” says Brook Henry.

“Over the next 12 months we will extensively develop the motor with the aim of providing both reliable interchangeable streetbike components, and an excellent platform to go racing in the Post- Classic Period 5 class here in Australia, or in Vintage Superbike and the air-cooled Pro Twins class in the USA, Japan and Europe.”


The History of the Project





After the desmo V-Twin’s successful debut in 1972, the new government-appointed manager of Ducati, Cristiano de Eccher, shut down the factory race operation as an unnecessary luxury. Eager to continue his policy of using racing as a means of developing new customer streetbikes, Ducati technical chief Fabio Taglioni skirted this by designating the nearby NCR tuning shop – recently opened by former Ducati GP race mechanics Giorgio Nepoti and Reno Caracchi – as Ducati’s satellite race team, although all the engines used in NCR racebikes were the product of the Ducati factory’s technical department.

After Steve Wynne – owner of the UK’s largest Ducati dealer, Sports Motor Cycles – persuaded Mike Hailwood to race a Ducati at the 1978 Isle of Man TT after a six-year absence, he requested the Ducati factory’s support. He was supplied with two prototype motors – an evolution of the existing production engine – manufactured by NCR to the drawings supplied by Ducati that form the basis of the Ritorno design. Hailwood duly won the race with one of these engines, and on the back of this success Ducati management decided to bring it to production as an updated replacement for its existing bevel-drive motor.

A pattern maker was commissioned to start making the requisite moulds for the new engine castings, again using these drawings. But before this could be completed, the government managers then running Ducati decided to start winding down motorcycle production in favour of diesel motors, and this new engine project was scrapped in favour of maintaining the current production bevel drive design in the short term.

That’s one reason why Mike Hailwood’s 1979 Ducati TT F1 racer – on which he finished fifth in the TT after a troubled ride – was fitted with a less powerful modified wet clutch streetbike motor.

However, these partially finished moulds were discovered in the early 1990s by a retired Italian engineer who wanted to create a totally faithful replica of the Hailwood TT bike for his own personal satisfaction.

He struck up a deal with Ducati management to obtain an official copy of the factory drawings, signed out by Ing. Gianluigi Mengoli, Ducati’s head of engineering at the time. In due course the company acquired the complete replica Hailwood bike that resulted, in return for which he was permitted to use the engine drawings for commercial purposes.

Some years later, Vee Two Australia purchased the entire project including patterns, moulds, drawings and various sets of proof castings, and has now developed the Ritorno replica motor based on this design.
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Friday, November 27, 2015

The Complete History of Kawasaki Motorcycles

Kawasaki Motors was the last of the surviving Big Four manufacturers to enter Japan’s motorcycle business, although like its wartime peers Fuji and Mitsubishi it did make an aborted foray into scooter manufacturing during the early 1950s. Details about the vast and diverse Kawasaki Heavy Industries Corporation could fill several volumes, and while Kawasaki documents many of its manufacturing divisions extensively, it dedicates just three pages of its 1997 published history to its motorcycle operations.

Kawasaki Motorcycle History Ninja ZX-14R


This is perhaps appropriate because Kawasaki Motors makes up only a fraction of this vast corporation’s global operations, but it is undoubtedly the conglomerate’s most recognized division. Kawasaki does, however, document the origins of the motorcycle division’s parent firm, the Kawasaki Aircraft Company, in detail in a separate volume. This source illustrates the aircraft manufacturer’s steady growth during the transwar era and leaves little doubt as to the extent of the firm’s technological capabilities.


A late entrant to the motorcycle market, Kawasaki’s rapid success in the field stemmed from a long history of engine and turbine design and manufacturing. In April 1876, Kawasaki Shozo (born 10 August 1837) established the Kawasaki Tsukiji Shipyard alongside the Sumida River in Chuo ward, Tokyo, with the support of Prince Matsukata Masayoshi (1835-1924), who was then Japan’s vice minister of finance. When the first Sino-Japanese War broke out in 1894, the company received extensive orders for ship repairs.

Immediately after the war’s end in 1895, Kawasaki decided to take the company public, and in 1896 the firm was incorporated as the Kawasaki Dockyard Company. As Kawasaki Shozo approached sixty years of age without a son old enough to succeed him, he chose Matsukata Kojiro (1865-1950) to lead the company into the next era. Kojiro, Matsukata Masayoshi’s third son, served as the president of Kawasaki Dockyard for thirty-two years, from 1892 to 1928. During that time, the firm diversified its interests broadly, expanding into shipping and the manufacture of steam turbines, submarines, locomotives, rolling stock, and, of course, aircraft.




As Kawasaki grew, its principal divisions were spun off into separate entities (look at the figure above). The first to branch off was its marine freight department, Kawasaki Steamship Lines, or K-line, which was incorporated in 1919. In 1928, the company’s Hyogo works was incorporated separately as Kawasaki Rolling Stock Manufacturing Company. Kawasaki’s aircraft department had been established in this manufacturing plant in 1918, but in 1922 a new plant for aircraft construction was established at Sohara (today Kakamigahara City) in Gifu prefecture.

Here it began producing its first surveillance biplane, the Type Otsu 1, for Japan’s military. Kawasaki built roughly three hundred of these aircraft over the next five years. The aircraft department was spun off in 1937 as the Kawasaki Aircraft Company Limited. In 1938, the year after Japan’s invasion of China, Kawasaki sought to expand its operations at Gifu, but there was insufficient space to construct additional manufacturing and aircraft testing facilities. Consequently, the Imperial Japanese Army encouraged Kawasaki to construct a new plant just west of Akashi City in Hyogo prefecture, where there was enough land available (1.8 square kilometres, or 0.7 square miles) to build both a new factory and a pilot training ground. Kawasaki then moved its existing Kobe Motors plant to Akashi, where Kawasaki’s motorcycle production later began.


Kawasaki Aircraft designed and built a series of fighter and escort aircraft for Japan’s military until the end of the Second World War. Its products included a long-range escort and ground attack aircraft called the Ki-45 Toryu¯, or "Dragon Slayer," which emerged in September 1941 and was dubbed "Nick" by the Allies. The frame was designed and manufactured by Kawasaki, but it featured a pair of air-cooled, fourteen-cylinder, radial piston engines designed by Mitsubishi Aircraft. From 1941, Kawasaki also produced its own engine through a licensing arrangement with Daimler-Benz. Known as the Ki-61 Hien, or "Flying Swallow" (and called "Tony" by the Allies), this aircraft was based upon the Messerschmitt Aircraft Company’s Me109 and Me210 designs, all the parts for which were purchased from Germany by Japan’s army in June 1941 and January 1943, respectively.

The aircraft were disassembled and shipped to Japan aboard German navy submarines, and the engineers at Kawasaki Aircraft studied, sketched, and assembled each of the fighters over three-month periods. The engineers found the German designs and production methods highly innovative, but Kawasaki’s test pilots did not consider their performance in the air especially remarkable. Nevertheless, the engine casting plant at Akashi reproduced the Daimler-Benz engine, known as the DB 601-A, which was an inverted, liquid-cooled, V-12 cylinder machine. The resulting Kawasaki powerplant, designated the Ha-40, produced 1,175 horsepower and was the only liquid-cooled fighter engine manufactured in Japan during the war. Not limited to merely copying the Daimler-Benz engine, Kawasaki’s engineers later produced an improved version known as the Ha-140 that produced 1,450 horsepower.

Known to the army as simply the Type-3 fighter, the Ki-61 had its first flight in December 1941 and saw combat for the first time in the spring of 1943 during Japan’s campaign in New Guinea. Over 2,600 units were issued during its production run, and it later served as a defence against US B-29s, although too few remained by 1945 to be a significant deterrent to American air raids. In January 1945, Kawasaki was working on two versions of an updated model called the Ki-61-II, but only ninety-nine were completed before the firm’s engine plant was bombed on 19 January.

In an effort to make use of 275 remaining airframes, Kawasaki’s engineers substituted the Mitsubishi Ha-112-II radial piston engine for the usual V-12 powerplant and issued what it called the Ki-100 fighter. Although this turned out to be a tremendous design that performed exceptionally well against US fighters, too few were produced to be effective against the American advance. Production continued until the company’s operations at Hyogo were bombed by thirty B-29s on 22 June 1945 and again by ninety planes on 26 June, resulting in the destruction of Kawasaki’s engine and assembly plants.



By the time Japan surrendered on 15 August, Kawasaki records that it had designed, tested, and built roughly 11,600 aircraft. Crippling material shortages notwithstanding, the firm contends that its designs remained competitive and that its technical skill was closing in on international standards. With the end of the war, operations were idled until GHQ had assessed Japan’s industrial base and issued its ruling on which plants were to continue peacetime production and which were to be terminated. GHQ banned all aircraft design, testing, and production in the late summer of 1945.

For Kawasaki Aircraft, this directive meant that its bombed-out plants would have to convert, at least temporarily, to the production of other goods. This familiar pattern parallels the experiences of the Suzuki Automatic Loom Company, Nippon Gakki, and the Mitsubishi and Fuji aircraft companies. Early after the war, Kawasaki made arrangements to produce such items as firefighting equipment, duralumin suitcases, electric kettles, radio cabinets, typewriters, farm implements, and small engines. As a former manufacturer of its own V-12 aircraft engines, Kawasaki’s engineers were a uniquely skilled group, but the production of small engines for agricultural use was a significant shift in both purpose and scale. Combined with the difficulty in procuring production material, the Akashi works struggled to stay busy while General Douglas MacArthur and his staff considered its future.

In 1946, GHQ’s strict ban on aircraft production was relaxed, and on 12 June it announced that its total prohibition was “deleted” and replaced by the following order:

" You will permit no individual or group under your jurisdiction to develop or execute plans for the design, manufacture, procurement or operation of any aircraft, components or devices designed therefor; or for procurement outside of Japan of such services, except as specifically authorized by the Supreme Commander of the Allied Powers."

This new policy permitted some leeway, and as Kawasaki awaited the opportunity to again manufacture aircraft, its Gifu plant began manufacturing bus and truck bodies as a subcontractor for the Isuzu Motor Company. At this time, Kawasaki Aircraft had three divisions: Kawasaki Aircraft, in Akashi, Hyogo prefecture; Kawasaki Gifu Manufacturing, in Sohara, Gifu prefecture; and Kawasaki Machine Industries, in Takatsuki City, Osaka prefecture. Although Japan’s aircraft industry remained idle until the Treaty of Peace with Japan came into effect in March 1952, former military aircraft producers were called upon to service and repair US aircraft following the outbreak of the Korean War in June 1950.

This seven-year delay was a difficult obstacle to overcome, but Kawasaki had been able to maintain a baseline of technical skills and equipment through its interim role as a service subcontractor for the Douglas Aircraft Company of the United States. After aircraft production resumed, Kawasaki began developing the KAL-1 transport plane at its Gifu plant, while its Akashi works focused on the development of helicopters based on an agreement signed in 1952 with the Bell Aircraft Corporation of the United States. In 1954, Kawasaki produced six Kawasaki-Bell 47D-1 helicopters – the first helicopters built in Japan – for the nation’s Ground Self-Defense Forces.



At the end of the 1940s, meanwhile, Kawasaki’s management began laying the groundwork for its foray into motorcycle production. In 1949, aircraft engineers at the Kawasaki Machine Industries plant in Takatsuki began designing the company’s first motorcycle engine, an air-cooled, four-stroke, one-cylinder, overhead-valve, 148 cc machine, which they dubbed the KE, for "Kawasaki Engine." The prototype was completed in 1952, and Kawasaki began manufacturing the design in 1953.

For that purpose, Kawasaki established a subsidiary called Meihatsu Industries to oversee the production and distribution of a scooter equivalent to the Rabbit and Silver Pigeon scooters then being produced by Fuji and Mitsubishi, respectively.121 Kawasaki Machine Industries manufactured the engine in Takatsuki, and the Kawasaki automotive plant at Sohara, Gifu (which continued to build bus bodies for Isuzu) began building scooters with the KE motor in October 1953. Although the new Kawasaki brand scooter was priced competitively at ¥90,000, the company had no effective domestic sales network and therefore discontinued production after completing just two hundred units. As a munitions corporation, its principal customers had theretofore been Japan’s government, major rail companies, the army, the navy, GHQ, Douglas Aircraft, and Bell Helicopter, so Kawasaki did not have a great deal of consumer product sales or marketing experience. Though a skilled manufacturer, Kawasaki had not considered the challenges of bringing its new scooter to market, and the product was a failure.

In February 1954, the Kawasaki Aircraft and Kawasaki Machine Industries divisions merged, and, spotting another opportunity in a converging market, the company’s head office decided in July to enter the motorcycle industry. Under the joint company name of Kawasaki-Meihatsu, the parent company and its subsidiary worked together and followed Yamaha’s lead by developing a 125 cc engine called the KB-5 at the Kawasaki Aircraft plant in Kobe in 1955. At this point, Kawasaki designed and manufactured the engines, and the finished motorcycles were named Meihatsu. The KB-5 engine was installed in the Meihatsu brand 125-500 motorcycle in that year, and customers were pleased by the responsive torque that it produced at low and mid-range rpm.

The same engine was also installed in the Meihatsu 125 Deluxe, which debuted in 1956, and Kawasaki produced a modified version of the engine, called the KB-5A, in 1957. The 125 Deluxe was well received by industry writers, who reported that it reached a top speed of 81.5 km/h (51 mph), and it also completed a 50,000-km (30,068-mile) endurance test without breaking down. Kawasaki-Meihatsu also supplied engines to a variety of contemporary "assembly makers" throughout Japan, such as the Ito Motor Company and the Rocket Company. The latter company, however, judged Kawasaki’s engine too expensive and discontinued its use in the Queen Rocket motorcycle.

By 1959, the company was pleased with the performance of its Kawasaki-Meihatsu motorcycle division, and, like the three companies profiled above, Kawasaki determined that in order to compete effectively, a state-of-the-art manufacturing plant was required. The firm therefore erected a factory at 1-1 Kawasaki-cho, in Akashi, Hyogo prefecture, dedicated to production of complete motorcycles bearing only the name Kawasaki. Construction of the plant began in January 1960, and mass production of the 125 cc Kawasaki New Ace commenced in November of that year. At the Japan Auto Show in October 1960, Kawasaki displayed its newest 125 cc designs for the 1961 model year, the Pet M5 and the B7.

The Pet M5 was styled as a utility motorcycle, but because it boasted Kawasaki’s 125 cc engine, it appealed to firms in Japan’s service industry that wanted more power than Honda’s 50 cc Super Cub could offer. These new products sold well: production rose sharply from 5,400 machines in 1960 to 17,000 in the following year. The former subsidiary Meihatsu Industries, meanwhile, was absorbed by its parent in 1961 and converted into Kawasaki’s sales division under the name Kawasaki Auto Sales.

Kawasaki’s attention turned in 1960 to the troubled Meguro Manufacturing. Meguro was then Japan’s longest-running motorcycle maker, and it had remained one of the industry’s leading firms until the late 1950s. A manufacturing veteran, Meguro had issued its first four-stroke, 500 cc engine in 1937. By the mid-1950s, the styling of its motorcycles bore a strong British influence that was popular with consumers, but when Meguro’s designers tried to update their image in 1958, consumers deemed the new 125 cc, 250 cc, and 350 cc products too heavy, and sales were dismal. Its designers also tried to produce a 50 cc moped, but consumers found it too expensive, and the project was a failure.

In 1960, Meguro agreed to enter into a development partnership with Kawasaki, whose engineers learned a great deal about building four-stroke engines from the senior manufacturer. In 1962, Kawasaki released the first motorcycle both designed and built by its own engineers, the 125 cc B8, which performed well in the market. Kawasaki was the financially dominant partner in the relationship with Meguro, and having learned what it needed to know, it absorbed the elder firm formally in October 1964.


Like the industry’s leading firms, Kawasaki understood that in order to be taken seriously as a manufacturer it had to perform well in races. Well aware that Honda, Suzuki, and Yamaha were several laps ahead on the world Grand Prix circuit, Kawasaki decided to focus first on motocross racing, which was growing especially popular in western Japan at that time. In 1963, the company’s designers issued the B8M, a motocross model with a distinctive red fuel tank, and with it Kawasaki’s riders took the top six positions at that year’s Hyogo Prefecture Motocross Tournament. Despite its recent arrival to the sport, Kawasaki went on to win most of the motocross races in western Japan that year, including every event at the Fukui Prefecture Motocross Tournament, prompting the media to dub the Kawasaki racing sensation the "Red Tank Furor." Kawasaki’s dealers rode the wave of media attention, and the company’s reputation continued to hit new highs as it performed well in international races throughout the 1960s.

In parallel, export sales had begun in 1960 and were supported by Kawasaki’s reputation for designing larger, faster motorcycles than its competitors The company’s product development engineers broke new ground in 1965 by designing Kawasaki’s first 650 cc motorcycle, the W1. Powered by an air-cooled, two-stroke, parallel twin-cylinder engine featuring rotary disk valves, the W1 was aimed at both Japanese and Western consumers. Its styling owed much to the machines once produced by former partner Meguro, which had closely resembled British makes. The W1 marked Kawasaki’s arrival in the United States as a “big bike” maker.

Thereafter, steady progress in international racing improved Kawasaki’s position as a world-class competitor and manufacturer. In 1966, Kawasaki’s first 125 cc Grand Prix racing machine, the KAC Special, took seventh and eighth places in the final race of the FIM (Fédération internationale de motocyclisme) World Championship. In the same year, its 250 cc A1R racing model finished second in the All-Japan Championship. At the Singapore Grand Prix race in 1967, Kawasaki entered the 350 cc class race with its A7R and took both first and second places, while the 250 cc A1R finished second and third. Determined to improve its standing in 125 cc class races, Kawasaki also developed a new machine for the Japan round of the 1967 FIM World Championship. Known as the KA-2, it boasted a liquid-cooled, V-4, 124 cc engine, and with it Kawasaki’s race team took third and fourth places.

In 1968, the company issued a three-cylinder, 500 cc production model known overseas as the H1 (and domestically as the 500SS Mach III) that could reach 200 km/h (124 mph), prompting significant safety concerns throughout Japan. In 1969, Kawasaki rider Dave Simmonds at last scored victories in both the West German Grand Prix and the Isle of Mann TT Race, winning that year’s overall championship series atop his KR1. Although several years behind its principal rivals, Kawasaki had finally arrived at the podium to confirm its status as one of Japan’s Big Four manufacturers.

In 1970, just a year after Kawasaki’s three machinery divisions merged to form Kawasaki Heavy Industries, annual motorcycle production neared 150,000 units. In 1972, Kawasaki bid to out-gun its leading rival, Honda, by producing Japan’s largest postwar export motorcycle to date – a 900 cc machine named the Z1. Nicknamed “New York Steak” during its five-year development program, the Z1 was powered by the world’s first air-cooled, in-line four-cylinder engine, which boasted dual overhead camshafts. The bold marketing strategy behind the Z1 was met with enthusiasm by consumers, and it enjoyed strong reviews and sales.

In Japan, the domestic Z2 was released in 1973 with only 750 cc and also enjoyed widespread popularity, but the overseas success of the Z1 kept Kawasaki on top as the maker of Japan’s largest production motorcycle for much of the decade. Honda did not begin issuing 900 cc machines until the late 1970s.

Having set its sights on the motorcycle market, Kawasaki was clearly a powerful competitor. The wartime experience earned while producing the Daimler-Benz 601-A aircraft engine was its principal technological advantage over firms that had produced nothing but motorcycles for the last four decades. Furthermore, its determined investment in a brand-new, fully automated manufacturing plant set the stage for its late-entry bid for market share. Timing, in this case, was critical, for the vast majority of makers had already departed from the industry when Kawasaki built its dedicated motorcycle manufacturing plant at Akashi in 1960. Armed with products designed and built by Kawasaki Aircraft and fuelled by international racing victories, Kawasaki Motors was well positioned to move into the motorcycle market of the 1960s, and the firm capitalized fully on its financial advantage over even the most veteran manufacturers.
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Honda XRV750 Africa Twin, Admirable Big-Trailie !

Honda‘s Africa Twin is another bike that conjures up specific memories for me. Back in 1994, I joined a sportbike mag, and did so with thoughts of ripping round the country on big bhp, hi-spec, race-reps. But just days into the job I was sent on an errand on one of the twin-pot Hondas.




Deemed back then as a big-trailie (the poncey, pretentious world of ‘adventure’ bikes was still some way off). I treated the prospect of riding the 750 with some disdain. A nose bleed-inducing seat height, skinny tyres with knobbles on ’em and a pathetic 62 HP were just some of the numerous discouraging ‘features’ serving to put me right off the bike. I wouldn’t care, it wasn’t long since I’d been earning a living delivering parcels aboard battered old high-mileage sheds. So quite why I was getting a bit snooty about a trip on the Africa Twin, god only knows.



Turns out the 20-odd-mile run was a real education. What a corker of a bike the 750 was. Super comfy, dead easy to ride, torquey motor were just some of the qualities I quickly listed. By the time I was done, I’d added plenty more. No wonder I’d seen so many of these sorts of bikes whenever I’d whizzed over to Europe. Suddenly the Africa Twin made a load of sense, and made me realise there were more bikes to like than just race-reps.

Since then I’ve appreciated a ton of rides on big trailies and pretty much loved the lot. When I met the owner of this one a few years back, I was in a much better position to understand why he liked it so much. Then when he added a few tales of true adventure behind the near 40,000 miles it had on its clock back then, I admired the Honda all the more.




It’s so damned easy to get on with. It might look a bit of a weighty brute, but get those spoked wheels turning and any thoughts of excess are left back where you began. Balance and poise are so evident from the word go, after just 10 minutes you feel so familiar with the bike it feels like you’ve been on it 50 times before. That’s the sign of a very sorted motorbike.

The riding position helps, with bars and pegs meeting the most ideal points of your extended arms and legs. It fits, and I suspect it’ll fit everyone bar freaks of nature. Fitting as ideally as it does, and combined with the shelter the excellent fairing and screen provides, staying in the comfy saddle all day long wouldn’t entitle you to any claims to fame for mile-eating. I might not have done the sort of miles its owner has done on the Honda, but it’s easy to see why he’s been able to cover so many.

You’re never likely to be stressed by the well-mannered V-twin Engine. Its power delivery is best described as soft, and so progressive and linear is the way it builds, it’s probably fair to even label it as polite. Always feeling unhurried you can understand why it only has five gears, and why you don’t need to swap them much. It pays to drop down a cog or two when you’re in town to nip any snatching in the bud, but in the right gear the engine pulls beautifully from bugger all revs.

There’s a bit of vibration if you ask a lot of the engine in the taller gears when it’s running slowly, but only fussy types would object to it. But you’ll not see any blurring in the mirrors and won’t feel anything through the bars. Then as soon as the 750 is spinning more freely it smooths out completely. It’s a very real world and fully usable engine. Short of sheer power it might be, but as it’s so friendly you can use all it has and never feel intimidated. Oh, it’s lovely!




There’s a nice feel from the chassis too. By modern standards its handling has to be described as a bit slow and lethargic. In fairness though, you’ll only really sense that if you’re trying to hurry it through stuff like chicanes. The majority of the time you’ll appreciate the stability it offers, with the feel and feedback being another bonus to help you realise exactly what’s going on beneath you.

Part of that is down to the soft, supple suspension, which also gives good, comfortable ride quality, making bumps feel significantly less serious. It gets a bit flustered if you test its damping too much, but its slight wallowing won’t generate any worry. Hustling this bike might need a bit more muscle at times, but those same muscles won’t often be made rigid with worry : safe and certain is the best way to describe the handling.

You don’t see many Africa Twins on UK roads these days, and it’s a wonder why Honda didn’t do a better job of replacing it when it was dropped in 2003 to be replaced by the lacklustre Varadero – which had been out a few years even then. I reckon it’s one of the best and most endearing Hondas built in recent times... and easily tough enough to trot round the world.


Honda XRV750 Specifications



Manufacturing: Honda (Honda Racing Company)

Model: XRV750 Africa Twin

Year Built: 1989 - 2003



Engine: 4-Stroke, Liquid Cooled, 50' V-Twin, SOHC 6-Valve (3-Valve per Cylinder)

Bore x Stroke: 81 x 72 mm

Cylinder capacity: 742 cc

Fuel Supply System: 2 x Keihin CV 38mm Flatside Carburetor

Compression ratio: 9,0: 1

Transmission: 5-Speed

Ignition: Digital ECU

Max Power: 62 HP @ 7.500 RPM

Max Torque: 62,7 N.m @ 6.000 RPM

Top Speed: 182 Km / h



Dimensions - Length x Width x Height: 2.315 x 905 x 1.430 mm

Wheelbase: 1.565 mm

Seat Height : 860 mm

Empty weight: 207 kg

Fuel tank capacity: 23 Liter



Frame: Aluminium Double-Cradle Frame

Front Suspension : 43mm Air-Assisted Telescopic Fork

Rear Suspension: Monoshock with Pro-Link System, Compression Damping Adjustment

Front Brakes : 2 x 276mm Hydraulic Discs, 2 Piston Caliper

Rear brakes : 256mm Hydraulic Disc, 1 Piston Caliper

Front Tires : 90/90 - D21

Rear tires: 140/80 - R17
Read more »

Thursday, November 26, 2015

Honda SL350 History : The Stopgap Scrambler !

Honda SL350 History : When Yamaha stirred it all up back in 1968 with the DT1 250 trail bike the future of motorcycling took a very specific and divergent turn. The days of making a half-hearted attempt at an off-roader were over.


Honda SL350 History : The Stopgap Scrambler


Honda’s immediate response was actually little more than a papering over-the-cracks exercise; it might even be seen as a cynical effort. The first Honda SL350 really was little more than a CB350 in a pretty summer outfit. The bike’s mass at 364lb (165kg) meant it was still far too heavy for its intended purpose: Honda arguably still hadn’t quite grasped what a trail bike actually was and was still too focused on the desert sled side of things as successfully capitalised on by the big Brit twins.

The CB’s geometry meant that the ‘new’ SL had too much understeer on fast bends and the power came in a little too hard at 5.000 RPM. The bike was okay but not exactly what the market wanted; there was too much CB about the bike; it even retained the roadster’s electric start. However, there were two facets of the Honda SL350 Motorsport that everyone seemed to love; the looks were stunning and the saddle was one of the most comfortable ever.

Honda SL350 History : The Stopgap Scrambler


With customer feedback taken on board, Honda’s 1970 offering was an altogether better machine. If the Honda SL350 K1 wasn’t a totally all-new machine it was pretty damn close. The heavy single down tube frame had been dropped in favour of a purpose-built lightweight twin down tube chassis; this helped drop weight by an astonishing 60lb (27kg). Smaller slide carbs had replace the previous 30mm CV units, which had had a nasty habit of slamming shut when landing from higher jumps – never the ideal scenario on the dirt! The electric foot was also dropped.

A heavily revised camshaft allowed for maximum torque to be delivered at a much more reasonable 6.000 RPM and although the peak power had dropped from a claimed 33 to 25 HP the motor was much more usable. Revised frame geometry, increased trail, redesigned forks and different shocks all contributed to make the Honda SL350 K1 the bike the K0 should have been. Smaller diameter brakes more in-keeping with the bike’s intended use pretty much completed the upgrade and Honda was onto a winner. There were a host of minor revisions in 1972, including the fitment of a 21in front wheel in place of the previous 19in unit, revised paintwork and the adoption of anodised alloy guards in place of the previous painted ones.


Honda SL350 History : The Stopgap Scrambler


This, the K2, was the end of the line for the Honda SL350. The Japanese had taken a longer term view and realised that it was simply not viable to run an essentially compromised design based on a road bike in a rapidly expanding market sector. Late 1972 saw the launch of the purpose-made XL250 Motorsport. This single re-established the genre that had pretty much died out during the death throes of the British bike industry and arguably it would lead to such ground-changing dirt bikes as the seminal Yamaha XT500.

Honda SL 350 Specifications


Engine : Air Cooled, Four Stroke, Twin-Cylinder, SOHC 4-Valve
Displacement : 326 cc
Bore x Stroke: 64 x 50.6 mm
Compression Ratio : 9.5;1
Carburetion : 2x 36mm Keihin CV
Max Power : 33 HP @ 9.500 RPM
Transmission / Drive : 5-Speed / Chain-Driven

Weight : 165 Kg
Front Suspension : Telescopic Fork
Rear Suspension : Dual-Shock
Front Brakes : Drum
Rear Brakes : Drum
Front Tyre : 3.00 - 19
Rear Tyre : 3.50 -18

Read more »

Honda RVF750R (RC45), The Successful Race-Breed !

In the early days, We're dismissed the Honda RVF750R (RC45) as over-priced and underpowered – as a road bike it was over £17,980 in 1994, when a Kawasaki ZXR750 L1 was £7950. But to judge it as solely a road machine is missing the point.



Honda RVF750R (RC45)


It was designed, right from the start, to be festooned in HRC race-kit bits and win races – it was built to be modified. The small production run of stock road bikes was just a consequence. The RC45’s job was to win superbike races.

As well as being a much-needed replacement to the aging RC30 in WSBK, Honda badly needed a bike to win the Suzuka 8-hours race. Some say that in the 90s a Suzuka win was more important than a 500GP title and new rules banning prototype machines meant that Honda needed a competitive bike. The machine was an evolution.



Honda RVF750R (RC45) Suzuka 8 Hours


The RC45 has gear-driven cams, like its predecessor the RC30, but Honda extensively redesigned the engine to make it more compact and was updated with fuel-injection too. The RC45 won the 8-hours in its debut year, then again in 1995.

Colin Edwards and Noriyuki Haga beat it with the Yamaha YZF750 in 1996, but the Honda V4 won again in 97, 98 and its final year 99, by which time it had a double-sided swingarm, two-into-one pipes up either side of the bike and a very funky Lucky Strike red paintjob.

It was retired when the equally dominant VTR1000 SP-1 V-twin took over. The highlight being a holidaying Valentino Rossi winning on it in 2001. Since 1994, Honda has won 17 Suzuka 8-hours to Suzuki’s two and Yamaha’s one. Kawasaki last won in 1993 with the ZXR-7, the last year of the F1 prototype rules.

The RC45 also won a World Superbike title with John Kocinski, in 1997, and AMA Superbike the following year with Ben Bostrom. Philip McCallen, Joey Dunlop and Steve Hislop won TTs on the V4 too.


Honda RVF750 (RC45) Specifications



Manufacturing: Honda (Honda Racing Company)

Model: RVF 750 (RC45)

Year Built: 1994 - 1999



Engine: 4-Stroke, Liquid Cooled, 90 'V-4 (4 Cylinder), DOHC 16 Valve, Gear-Driven Camshaft

Bore x Stroke: 70 x 48.6 mm

Cylinder capacity: 748 cc

Fuel Supply System: PGM-FI (Fuel Injection)

Compression ratio: 11.5: 1

Transmission: 6-Speed, Close Ratio

Ignition: Digital ECU

Starter: Electric Starter

Max Power: 119 HP @ 12,000 RPM

Max Torque: 75 N.m @ 10,500 RPM

Top Speed: 260 Km / h



Length x Width x Height: 2110 x 710 x 1100 mm

Wheelbase: 1407 mm

Ground Clearance : 130 mm

Dry weight : 189 kg

Fuel tank capacity: 18 Liter



Frame: Aluminium Twinspar Frame, Low Center of Gravity

Front Suspension : 41mm Upside Down Fork

Rear suspension: Monoshock with Pro-Link System, ELF Designed Single Sided swingarm (Mono-Arm)

Front Brakes : Hydraulic discs 2 x 310mm , 4 Piston Caliper

Rear brakes : Hydraulic Disc 220mm, Caliper 2 Piston

Front Tires : 130/60 - ZR16

Rear tires : 190/50 - ZR17

Read more »

Asia's Twenty-First-Century Explosion in Motorcycle Production




As Japan’s surviving manufacturers are well aware, China is the world’s largest motorcycle market, followed by India in second place and Indonesia in third place. Japanese firms have been making inroads into Asia for many years, in terms of both sales and local manufacturing. From the Suzuki Motor Company’s first overseas motorcycle assembly plant in Thailand in 1967, the manufacturing web of the Big Four (Honda, Suzuki, Yamaha & Kawasaki) makers has spread to developing countries throughout Asia.


The Honda Motor Company entered the lucrative Indian market in 1984 through a joint venture with a local producer, thus forming Hero Honda Motors, Ltd. To date, the New Delhi-based firm has created 2,400 customer “touch points” comprising a host of dealers, service centres, and parts shops throughout urban and rural India. Driven by this well-informed effort to stay connected to its customer base, Hero Honda has been the world’s leading motorcycle manufacturer since 2001. In that year alone it produced 1 million motorcycles – a figure that boosted its total sales history to 5 million units.

The firm’s sales soon doubled to 10 million units by 2004, and in July 2006, pleased with its 48 percent share of the Indian motorcycle market, Honda announced that it would invest an additional US$650 million in a new subsidiary company to expand its production of both motorcycles and automobiles. In a press release, Honda announced that it expected its share in the Indian motorcycle market to reach 7 million to 7.5 million out of a total 12 million units annually.


Faced by such a manufacturing juggernaut, India’s second-largest motorcycle producer, Bajaj, has opted to pursue the world’s third-largest market, Indonesia. Although sales in Indonesia jumped from roughly 1 million units in 2000 to over 5.1 million in 2006, the country now has just one motorcycle for every seven people – compared to one in four people in neighbouring countries. Bajaj therefore sees serious potential in Indonesia and, despite a recent market slump due to inflation and rising interest rates, the company announced in 2006 that it expected to sell 100,000 motorcycles there in its first two years. The Honda, Yamaha, and Suzuki motor companies all have production facilities in Indonesia, however, so Japan’s top producers continue, for the moment, to maintain a greater reach than their Asian rivals.

In the long term, the country with perhaps the greatest manufacturing potential is China. Already by the year 2000, Chinese motorcycle manufacturers had an annual production capacity of over 20 million units, even though the country’s domestic sales then totalled approximately 11 million units per year. Domestic sales are limited by China’s municipal governments, and motorcycle usage and sales are banned in major cities in order to curb traffic congestion, noise pollution, and exhaust emissions. Consequently, China’s many motorcycle producers have been forced to pursue aggressive export strategies – particularly to large developing countries like Indonesia, Vietnam, Argentina, and Brazil. Chinese makers have been less successful in India, Thailand, Malaysia, and the Philippines, however, because those countries’ governments fear that inexpensive (and often illegally copied) Chinese imports will damage their domestic motorcycle industries.

In China itself, Honda Cub - type motorcycles are not as popular as scooter and sport models, but due to the popularity of the Cub type in Southeast Asia, particularly in Indonesia and Vietnam, most exports from China are illegal copies of Japanese Cub-type models. In 2001, Indonesia granted import licences to eighty-seven new motorcycle brands, fifty-seven of which came from China. The quality of these Chinese exports, however, was often very poor.

In a 2001 report, the president of the Association of Motorcycle Industries of Indonesia, Ridwan Gunawan, highlights an important parallel between the development of China’s motorcycle manufacturers and Japan’s postwar motorcycle industry. Gunawan points out that many Chinese motorcycle manufacturers were once government-owned defence companies that produced arms and materiel for China’s military. Over time, many became redundant and therefore converted their operations into vehicle and particularly motorcycle production facilities. Their initial investment cost was low due to their ready supplies of production material, machinery, and trained technicians, and they shortened development time by obtaining licences and forming joint ventures with Japanese manufacturers. But many of these Chinese firms’ local partners later copied those Japanese models without entering into any licensing arrangement with the Japanese patent and design owners.

Thus while the Japanese motorcycle and scooter designs entered the Chinese manufacturing network legally, their illegal replication by unlicensed firms expanded the volume of production tremendously.



The Japan Times reported in 2002 that in addition to China’s 140 licensed motorcycle manufacturers, as many as 400 unlicensed makers were in operation. The article cited a survey by the Beijing office of the Japan External Trade Organization (JETRO), which found that roughly 90 percent of the 1,300 motorcycle models with engines measuring 125 cc or less sold in China in 2000 were copies of Japanese models. JETRO continues to press China’s government on the issue of the illegal copying of motorcycle designs and their various component patents, but Chinese manufacturers are merely speeding up the product development process. This is precisely what the Japanese firms Fuji and Mitsubishi did in 1946 when they copied American designs to produce their Rabbit and Silver Pigeon scooters, respectively.

Nevertheless, the products issued by China’s unlicensed firms are often inferior to Japanese designs because the firms lack the requisite technical skills to manufacture the components correctly; they often incorporate inferior emission- and noise-control devices; and they use locally made materials and machine tools, some of which do not meet the minimum quality standards demanded by licensing agreements. Despite their lower quality, both legal and illegal Chinese motorcycles appeal to consumers in Indonesia and other parts of Southeast Asia, where they are sold less expensively than domestically produced models. Although Gunawan notes that competition from imports is positive, giving consumers more choice and stimulating domestic industry, illegal import practices such as under-invoicing and tariff-avoidance cheat the government and undermine the competitiveness of domestic producers. China’s entry into the World Trade Organization in 2001 may well obligate its manufacturers to follow rules against intellectualproperty rights violations, but in reality only tougher import regulations and smarter consumer behaviour in other regions will affect the bottom lines of unlicensed Chinese motorcycle makers.

On this front, there is hope for licensed manufacturing. In May 2007, George Lin, the president of the Taiwanese motorcycle firm Taiwan Golden Bee, said that although China’s domestic motorcycle industry is still home to dozens of makers and sellers of low-quality, low-cost, copied products who provide no after-service, consumers in neighbouring countries are becoming savvier. Lin said,

"Several years ago, international buyers were very much attracted to China’s low-price motorcycles and parts, but now users of these ‘Made in China’ products have been scared off by their poor quality and durability."

As a result, noted Lin, most of the importers of Chinese motorcycles, especially in developing countries, have closed down. This leaves competing regional firms like Taiwan Golden Bee in a good position to follow the model set forth by Japanese manufacturers in the 1950s and 1960s. Lin explained:

" Japan offers a good example for us; motorcycle makers there stayed competitive despite increasing production costs by taking the lead in the upper-end and larger-displacement segment with unmatched design, development, and cost-control capabilities, and with the introduction of high-end, high-quality products that rivals in Europe and the United States were not producing. Our manufacturers have equally good competitiveness, and they can make the most of the small-volume, large-variety business model. Our motorcycle makers should take aim at their Japanese rivals and not get mired in segments of the industry that can easily be occupied by price-cutting rivals in emerging countries, especially China."

As Lin points out, Japanese firms were forced to stay competitive by investing continually in new designs and manufacturing systems and taking full advantage of economies of scale. Japan may well have begun its initial postwar boom in scooter and motorcycle production through copying foreign designs, but that is not what kept its industry growing and advancing. Copying alone is a technological dead end that will turn only short-term profits, and firms that rely solely upon copying will ultimately fall by the wayside just as they did in Japan during the 1950s and 1960s.

The pattern of explosive growth and rapid contraction of Japan’s motorcycle industry will ultimately play out once more in China, where the illegal copying of licensed designs by inferior firms will eventually fail to generate significant or reliable returns. Furthermore, Japan’s industrial development is not the only pattern that should be studied as a model for developing nations undergoing rapid motorization: Japan’s comprehensive efforts since 1970 to combat road accidents and fatalities could be usefully applied in developing regions throughout South, East, and Southeast Asia.
Read more »

Tuesday, November 24, 2015

Why We Choose Cruiser Motorcycle ?




Choppers, customs, cruisers - whichever term you use, you are referring to a distinctly American style of motorcycle. The American landscape, both social and geographical, shaped this style of motorcycle into its present form.

As the history of motorcycle, many of the restless soldiers returning from Europe and Asia after World War II chose to explore the United States on motorcycles, but the motorcycles available didn’t suit them all that well. Outlaw bikers called the big Harley-Davidson touring bikes of that time "garbage wagons", because they considered all the accessories and extras mounted on them garbage.

In fact, Bylaw Number 11 of the original Hell’s Angels charter states : An Angel cannot wear the colors (club insignia) while riding on a garbage wagon …. The first thing most outlaws did was chop off all superfluous parts, which to them was anything that didn’t help the bike go faster: fenders, lights, front brakes, whatever. Hence, the term chopper.



Choppers came to symbolize the outlaw motorcycle contingent, the infamous onepercenters. By the 1960s, these bikes had evolved into radical machines far removed from the intent of the original customized bikes, which was improved straight-line performance. Anyone seeking outright performance would ride a Japanese or British bike. Harley had long since given up the pretense of producing sporting motorcycles.

People rode Harleys to look cool, and nothing looked cooler than a Harley chopper. The extended forks and modified frames of these motorcycles made them nearly impossible to ride, but the owners didn’t seem to mind. Riding a motorcycle with unsafe handling characteristics seemed to be another way of letting society know the rider didn’t care if he or she lived or died.

Over the years, such machines gained in popularity - even as they declined in practicality - but manufacturers seemed not to notice. It wasn’t until the 1970s, after decades of watching American riders customize their bikes, that the manufacturers got into the act and began offering custom-styled bikes.

The birth of the factory custom can be in large part attributed to one man: Willie G. Davidson. Willie G., as he is known, worked in Harley’s styling department, but he was also an avid motorcyclist who knew what people were doing to their bikes. One popular customizing technique was to take the fork off of a Sportster and graft it onto a stripped-down big-twin frame, so Willie G. did just that at the factory. The result was the original Super Glide.

The Super Glide model, offered in 1971, was not a screaming success, due in part to a funky boat-like rear fender (known as the Night Train fender). The next year, Harley gave the bike a more conventional rear fender and sold thousands of Super Glides. Harley wasn’t the only company working on a custom-styled bike. The British manufacturer Norton also developed a cruiser in the early 1970s. Unfortunately, its cruiser, the ungainly High Rider, wasn’t well received. The bike only contributed to the company’s eventual demise.

Kawasaki was the first Japanese company to test the factory-chopper waters, introducing its KZ900LTD in 1976. The kawasaki cruiser motorcycles featured pull-back buckhorn handlebars, a teardrop-shaped gas tank, a seat with a pronounced step between the rider and passenger portion, and a liberal dousing of chrome plating. These bikes forced the rider into a backward-leaning riding position (raising unbridled hell with his or her lower back), but otherwise, they were still functional, useful machines. As the decade progressed, the Japanese stuck to this formula. This approach had a limited future; the real future of cruisers was being forged elsewhere, by Willie G.

Two of Willie G.’s creations in particular proved to be the models for today’s cruisers: the Low Rider, introduced in 1977, and the Wide Glide of 1980. Study these bikes, and you’ll see elements of every cruiser now produced. The bobbed fender of the Wide Glide can be found on cruisers from Honda, Suzuki, and Kawasaki. The kickedout front end and sculpted fenders of the Low Rider hint at the shape of Yamaha’s Virago. These two bikes are arguably the most influential factory customs of all time.


What of the Japanese ? As the 1980s progressed, Japanese manufacturers got closer and closer to building motorcycles that looked like Harley-Davidsons. But they have taken cruiser styling in new directions, too. Honda now builds its Valkyrie, a massive, six-cylinder cruiser. Yamaha cruiser motorcycles Royal Star looks as much like a classic Indian motorcycle as it does a Harley-Davidson. And BMW’s cruiser, the R1200C, doesn’t resemble any other motorcycle on the planet.

This segment of the market is thriving, and for good reason: Cruisers are easy bikes to live with. Many of them are nearly maintenance-free. They look good, and when outfitted with a windshield, are comfortable out on the road. They may not handle as well as sportbikes, nor haul as much gear as touring bikes, but in many ways, they fulfill the role of a standard, all-around motorcycle. Many riders don’t ride a motorcycle to get from point A to point B as quickly as possible. They just like to ride. If that describes you, you might be cruiser material.
Read more »

Monday, November 23, 2015

The Four Stroke Exotic Engine : V-Fours, Inline Six & Flat-Six !


V-Fours, Inline Six Cylinder & Flat Six Engine



The V-Fours (V4) Engine



When Honda introduced its water-cooled V-four engine bikes for the 1982 model year, pundits predicted the demise of the inline four. It seemed reasonable at the time. These engines have exceptional power characteristics, providing good torque figures and more than adequate horsepower. Plus they are one of the smoothest engine designs in existence.

This engine design has become something of a standard - powering a variety of sportbikes, cruisers, and touring bikes - but it never came close to replacing the inline four. That was probably due to the expense of manufacturing such a complex engine design rather than any inherent flaws with the concept. In service, these have proven to be remarkably reliable motorcycles.


" A V-four engine is an engine with four cylinders arranged in a V-shaped configuration."

If you are in the market for a used motorcycle, a bike with a V-four engine is a safe bet. These bikes have been nearly indestructible. I have a friend who has 125,000 miles on his 1985 Honda 700 Magna as I write this. By the time you read it, he will probably hit 150,000 miles.



Inline Six Engine



For a few years in the mid-1970s and early 1980s, a few manufacturers fooled around with inline six-cylinder motorcycle engines, but these proved to be oddities, footnotes in the motorcycle history books. The odds of you stumbling across one of these beasties by chance are slim; most such machines are now the property of collectors.

"An inline six-cylinder engine is an engine with six cylinders in a row."



The Italian company Benelli produced a 750cc six-cylinder bike, but like many Italian bikes, this is one you’ll probably only see in pictures. More common were the big Sixes produced by Honda and Kawasaki. These were functional motorcycles, but both were victims of their own excess. The width of those six-cylinders just proved to be more bulk than would comfortably fit down in the engine bay, and handling suffered, especially on the water-cooled Kawasaki, which weighed nearly as much as a small car. And if four-cylinder engines are complex to maintain, sixes are absolute nightmares.




The Gold Wing - Flat-Six Engine



The engine Honda uses in its Gold Wing touring bikes is so unique, it doesn’t fit into any other category. The only thing comparable to the same inline six-cylinder version is the engine Porsche's uses in its 911-series. This is a flat, Boxer-type engine, with four or six liquid cooled cylinders, rather than two air-cooled cylinders, like BMW uses. The flat-four and flat-six-cylinder engines used in Honda’s Gold Wings are called flat because their cylinders are arranged in a flat, opposing configuration.

"When Honda introduced its Gold Wing in 1975, it created a new class of motorcycle : the luxury tourer."

These are the smoothest engines used in motorcycles, period, and are a major part of the Gold Wing’s appeal to the touring crowd. They also have a fairly centralized mass, which makes the entire motorcycle easier to maneuver. I’ve seen Gold Wing riders whip their bikes around as if they were riding sportbikes instead of ultimate behemoths weighing twice what the average sportbike weighs.
Read more »

Sunday, November 22, 2015

The Four Stroke : Inline Four Engine !

The Americans were huge fans of longitudinal in-line-four configurations, but it was Flemish arms manufacturer FN that was first to produce an Inline Four Motorcycles in Europe back in 1905.





Pre-1920s, a great many companies opted to try the stretched Inline Four Engine layout, including Indian, Excelsior, Henderson and Cleveland. In the UK, Wilkinson (the forerunner of Wilkinson Sword) produced an 850cc model with this configuration called the TMC, which was considered a luxury touring product.


The onset of war saw restrictions kill off production in 1916 and although Wilkinson continued to develop the engine post-war, it never built another motorcycle. In a similar fashion, Vauxhall famously dipped into the bike world when it commissioned the production of six luxury prototype motorcycles in 1922. In the end, only two were built and Vauxhall decided not to pursue its motorcycling interests any further.

When people refer to Inline Fours Engine now, they typically mean across the frame fours (transversely mounted, not longitudinally), such as Honda’s 1969 CB750.


The Inline-Four Engine Revival : Honda CB750 !




Honda CB750 Inline Four


The effect Honda’s CB750 Inline Four Engine had on the motorcycling world can be compared to the effect the introduction of Microsoft’s Windows operating platform had on the personal-computer industry. Sure, the old DOS system retained a few die-hard adherents, as did the British motorcycle industry, but just as the vast majority of computer users prefer Windows to DOS, the vast majority of the motorcycling public wanted four-cylinder bikes.

Although twin-cylinder bikes have experienced a resurgence in popularity in the past several years, riders still want four-cylinder motorcycles, which makes sense: The benefits of four-cylinder bikes can’t be denied.




The primary benefits of a Inline four-cylinder engine in a motorcycle are smoothness and a capability to run at higher RPMs than a comparable twin. (Higher RPMs is why almost all sportbikes use four-cylinder engines.)

Inline Fours tend to make their power higher up in the power band than twins and produce less torque at lower RPMs, but all but the most highly-tuned Fours (such as the Suzuki's GSX-R 600 or Honda's CBR600RR) make adequate torque down low. Some Fours aimed at a more general audience, such as Suzuki’s 1200 Bandit, make more torque than many twins.

The downside of Inline four - cylinder motorcycles is that the engines tend to be rather bulky, although designers are working to rectify this situation. For example, Yamaha has moved the water pump inside the engine cases on its latest big-bore sportbike in an attempt to make the engine more compact. These engines are also more complex than twins and singles. More parts means more expensive maintenance. The odds are you’ll end up with a four-cylinder engine, not because it’s better (or worse) than any other type, but because it is such a common design. This is especially true if you buy a used bike.
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The Four Stroke : Inline Triple Engine !




Eventually, the British responded to the Japanese invasion and introduced a new engine design, the inline triple. In many respects, this was just a Speed Twin with an extra cylinder grafted on, but it featured some unique characteristics, notably its compactness. British twins gained their reputation for being fine-handling motorcycles in large part because their compact engines allowed designers to tuck everything in, leaving very few hard parts to scrape the pavement during high-speed antics. With the triples, designers went to great lengths to retain that compactness.

An inline triple is an engine with three cylinders placed in a row.

Although promising, these bikes had too many problems to save the British motorcycle industry. Anyone who wants to learn how not to conduct business would do well to study the development of the Triumph Trident and BSA Rocket 3. A design firm with no experience in motorcycles was hired to style the bikes, resulting in bizarre-looking machines. Mechanically, the new bikes also failed. Although the engines were powerful, they proved unreliable in service, victims of underdevelopment.

After the styling of the new bikes was universally rejected by motorcycle buyers, Triumph redesigned the Trident (BSA had gone out of business by that time) and gradually worked out the mechanical bugs, but it was a waste of time. By then, Honda had already introduced its CB750 four-cylinder bike, and in doing so, effectively stripped the British of any influence in the motorcycle market.
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The Four Stroke : Boxer Engines !

In 1923, Max Friz, an engineer working for BMW Motorrad, built a motorcycle engine, the R32, a 500cc opposed twin, using basic principles still in use today. Afterwards, This engine configuration earned the nickname "Boxer" because the pistons thrust outward, away from each other, like fists.

This was not the first opposed engine, but Friz’s execution was unique, and the effectiveness of his design makes BMW’s Boxer engines popular to this day. By opposing each other, the pistons cancel out primary vibration, creating a remarkably smooth twin-cylinder engine. And by locating the pistons on the side of the engine, Fritz placed them in the cooling airstream, leading to a cool-running, and thus long-lasting, engine. It’s not uncommon to find BMWs with 200,000 or more miles showing on the odometer.


The success of Friz’s design was not lost on manufacturers from other countries. During World War II, Harley-Davidson used his Boxer design for a military motorcycle, and in 1941, Ural began manufacturing a Beemer clone in Russia. Harley ditched this idea soon after World War II, but Ural is still at it, and you can now buy Ural motorcycles in the United States.

Many people find that the Boxer design offers an ideal compromise between twin-cylinder torque and multi cylinder smoothness. Like the V-twin, a Boxer’s primary characteristic is abundant torque rather than massive peak horsepower. This torque is usually found a bit higher in the RPM range than a V-twin’s, but it still comes on early enough to be useful in the real world. In return, Boxers tend to have more top speed than V-twins. That, combined with the engine design’s inherent smoothness, allows Boxer riders to cruise for extended periods at elevated speeds. You can get yourself thrown in jail on a Beemer without much effort on your part.
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The Four Stroke : V-Twin Engine !




The V-twin design found widespread support even in the early days of motorcycle development, largely because it fit the shape of the bicycle-style frames used on motorcycles at the time.

By 1907, Harley and the Davidson boys displayed a prototype V-twin engine for their motorcycles. When Philip Conrad Vincent (the maker of Vincent Motorcycles) decided to add another cylinder to his Comet and create the first Rapide, the two cylinders together formed a traditional V. And when the Japanese got serious about building American-style cruisers, their engine of choice was the V-twin.

Modern manufacturers build V-twin motorcycles for a variety of reasons; some are practical and objective, while others, like tradition and style, are purely subjective.

" A V-twin engine is a two-cylinder engine with its cylinders splayed out in a V shape. "

V-twin engines vary widely in their characteristics. Some designs, like Harley-Davidson’s 45-degree V-twin, vibrate excessively. Some Harley touring models, as well as the Dyna Glide series, compensate for that vibration with elaborate rubber-mounting systems. Other models, like the Sportsters and Softails, just shake away, rider be damned. The reason for this involves the crankshaft design used in all Harley V-twins, but the vibration is also caused by the narrow angle of the V.

Other V-twin cruisers use narrow-angle V engines but also use some sort of system for reducing vibration. Honda uses a staggered crankshaft, which fools the engine into thinking the V angle is a wider 90 degrees. Other manufacturers, like Kawasaki, use heavy counterbalancers.

One characteristic common to most V-twin engines (and all successful ones) is ample torque, especially in the larger models. Riders of high-revving sportbikes often comment on the lack of peak horsepower V-twin bikes usually display, but they’re missing the point. While V-twins usually give away a lot of power up at the top of the power band (which, in the real world, means at triple-digit speeds), they make up for it by offering tremendous usable power at lower RPMs.

On a cruiser with a large V-twin engine, you can probably forget about riding all day at 145 miles per hour, but when you whack open the throttle at lower speeds (like the 65 to 70 miles per hour you’ll usually find yourself riding), you are rewarded with jetlike thrust that sets you back in the saddle.
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Moto Guzzi Le Mans MK5, Rewarding Ride !

When Giulio Cesare Carcano first drafted out his plans for a transverse V-twin motorcycle engine there’s little likelihood he believed his brainchild would still be alive and well half a century later. Moto Guzzi Le Mans MK5...




Stemming from the factory’s bid to win a prestigious contract to provide police bikes the resultant machine was a winner straight out of the packet but, crucially, offered a wholly unforeseen future. After a rejig the original V7 morphed into a long legged sporting machine before becoming one of the defining Italian thorough breds of the late 1970s in the guise of the Moto Guzzi Le Mans MK1. This 850cc twin has gone onto become one of the most iconic machines of the period and, as it often the way, more are now thought to exist than the factory actually made.

As prices have gone up and up so certain elements have Le Mans’d the cooking versions of the 850. Such is the cache of the Moto Guzzi Le Mans Mk1 that Mk2s are often retro detailed to look like the more valuable machine. As the competition moved on, Moto Guzzi ploughed its own furrow and reworked the big twin to ultimately deliver five variations on a theme.

The Moto Guzzi Le Mans Mk4 seems to be generally despised for its odd handling courtesy of a 16in front wheel but it call came back on track with the so-called Moto Guzzi Le Mans Mk5 which is our subject matter this time. What we have here is arguably one of the most accessible and viable Guzzi twins. Graced with an under square motor it has huge loping ability yet thanks to a four valve top end can still turn out the power and oomph: 56lb-ft of torque allied to a genuine 72,6 HP at the rear wheel makes for a hugely rewarding ride.




Compared to the almost universally slandered Mk4 the Moto Guzzi Le Mans Mk5 also handles rather better due to the simple but obvious route of bolting the fairing to the frame and not nailing half of it to the handlebars. It would appear that the knee jerk reaction to the previous model also finally got the factory to address other long running issues. Apparently the Mk5 even has decent switchgear; something you’d take for granted on a Japanese bike but not, apparently, on something as quirky as a Guzzi. Strictly speaking there’s no official Mk4 or Mk5; it’s the wheel size that effectively differentiates the two bikes, in official Guzzi speak they’re all Moto Guzzi 1000s.

In many ways the Moto Guzzi Le Mans Mk5 brought the bike back to where the earlier S3 and 750S precursors had been. Long and stable with that characteristic shaft drive the bike requires advanced warning of bends and a committed and considered line through them. The process isn’t wrong or counterintuitive, just different as essentially Guzzi-esque. Suspension is of the firm to the robust variety but again it goes with the territory.

Owning and riding a big Mandelo twin is a totally different experience to anything Japanese. It’s all a whole lot more committed and visceral, there’s an almost organic, living, feeling to a Guzzi that you simply cannot get from an anodyne Japanese four. If you fancied a period mile eater with character then the Moto Guzzi Le Mans Mk5 bears serious consideration.



Two hundred miles at a time is viable thanks to the riding position and the fairing; 250 miles on one tank of fuel is readily achievable. Down sides to Moto Guzzi Le Mans Mk5 ownership include a set of throttle springs that would tax a body builder, the previously mentioned hard suspension and sometimes variable approach to build quality. The good news is that many will have been modified to address the first two issues and on point three there’s a wealth of aftermarket upgrades out there to address any long standing issues.

Ultimately owning any of the so-called period Moto Guzzis is about commitment, dedication, perseverance, adaptability and, possibly, a desire to step aside from conventionality. If you are truly in love with across the frame fours and have little or no affinity with bikes with fewer cylinders then the Le Mans is unlikely to be for you. However, if you have a hankering for something different, packed with personality, that rewards patience then it’s certainly worth pursuing.


What to Buy and How Much to Pay ?




The maelstrom that is the current classic market has seen most bikes escalate in value and especially the Moto Guzzi Le Mans Mk1 and Mk2 models. Inevitably this has had a knock on effect on the less desirable versions as the early ones spiral upwards and out of reach of most potential buyers. For a long while the Moto Guzzi Le Mans Mk5 lived in the shadow of the 850 versions and was tainted by association with the Mk4 but things have changed dramatically over the last couple of years.

A rough and tatty Moto Guzzi Le Mans Mk5 will now command around £1800 and a good tidy example in fine fettle is unlikely to go for much less than £3000-£3500. Anything much above this would have to be in exceptional condition and come with an assurance that it’s not an ex-display or museum piece that will come with all the attendant issues. Guzzis are overtly riding machines so examples on offer with that unforgettable patina of regular use and considered upgrades are definitely the ones to go for.


Moto Guzzi Le Mans MK5 Specs



Engine : 4-Stroke, Air Cooled, V-Twin 978.8cc, OHV 4-Valves per Cylinder
Bore x Stroke : 78 x 88 mm
Maximum Power : 72,6 HP @ 7.250 RPM
Maximum Torque : 56 lb-ft @ 5.000 RPM
Transmission : 5-Speed, Shaft Final Drive
Compression Ratio : 9.5 : 1
Induction : 2 x Dell’Orto 40 mm Carb

Front Suspension : Telescopic Fork Variable Damping
Rear Suspension : Dual Shocks, 5-Way Preload Adjustable
Front Brake : 2 x 270 mm Disc, 2-Piston Caliper
Rear Brake : Single 270 mm Disc
Front Tyres : 100/90 - V18
Rear Tyres : 120/90 - V18
Fuel Capacity : 5.5 Gallons (25 Litres)
Dry Weight : 216 Kg
Wheelbase : 1. 499 mm


Price : £3000 - £3500
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