Yamaha developing CVT enduro bike
June 29, 2008 Yamaha is developing a CVT (Constantly Variable Transmission) version of its enduro machinery according to recent patent applications with the United States Patent and Trademark Office. Conceived by Leonardo da Vinci 500 years ago, the CVT provides an automatic gearbox with an infinite number of gears, smoother and more effective power delivery, greater reliability, and less fuel consumption and its power delivery characteristics could well be a boon in slippery off-road conditions, particularly with some help from a computer. The CVT's biggest advantage is ensuring the motor is always running “in the power band” and as the infinitely variable gear ratios change, it should deliver one smooth rush of power from standstill to top speed.
No details are available on the size of the powerplants, but alongside Yamaha’s 2WD developments, there’s no doubt the traditional dirt bike is set for some evolution in the next few years.
About the Author
Mike grew up thinking he would become a mathematician, accidentally started motorcycle racing, got a job writing road tests for a motorcycle magazine while at university, and became a writer. As a travelling photojournalist during his early career, his work was published in a dozen languages across 20+ countries. He went on to edit or manage over 50 print publications, with target audiences ranging from pensioners to plumbers, many different sports, many car and motorcycle magazines, with many more in the fields of communication - narrow subject magazines on topics such as advertising, marketing, visual communications, design, presentation and direct marketing. Then came the internet and Mike managed internet projects for Australia's largest multimedia company, Telstra.com.au (Australia's largest Telco), Seek.com.au (Australia's largest employment site), top100.com.au, hitwise.com, and a dozen other internet start-ups before founding Gizmag in 2002. Now he writes and thinks.
All articles by Mike Hanlon
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