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I honestly thought Yamahaís 1993 GTS1000 heralded the beginning of the end of telescopic fork front suspension. Yet here we are, 22 years later and besides BMWís Telelever and Duolever technology (and the Bimota TesiÖ -Ed.), the telescopic fork remains de rigueur for motorcycle front ends.
Depending on who you ask, the telescopic fork made its first appearance in undamped fashion circa 1908 on a Scott motorcycle. The experiment didnít last, as later models used the more contemporary girder suspension. BMW and/or Nimbus, circa 1934, are credited with producing the first motorcycles with a hydraulically damped telescopic fork. Using that date as an anchor, hydraulically damped telescopic forks have been in development for 81 years.
If ever a thing deserved the description 'black art,' motorcycle suspension is it. Your bikeís suspension needs to suck up bumps, control fore and aft pitch, steer the front wheel, create traction at the rear Ö and do it all from straight up and down to leaned all the way over on the tiresí edges.
The basic concepts are easy enough: coil springs and compression damping determine how your suspension compresses. Rebound damping (and the same coil springs) determine how it uncompresses. The rates at which those two things happen and under what conditions is the complicated part. All I know is that when your suspension is right, itís good, and when itís not, itís often uncertain what is exactly to blame.
Paul Thede of Race Tech, a big suspension player, used to say 'the best youíve ridden is the best you know,' and thatís exactly true. Some late-model bikes come really close right out of the box, I noted as I watched the shadow of myself rolling down a bumpy dirt road in Death Valley a couple of weeks ago: the KTM 1190 Adventureís tires were churning up and down like crazy, but you could barely tell from the saddle. If youíre trying to make that happen on an older machine, you might need a little help, and the fastest, cheapest way to get there in the end is to consult a specialist in the beginning. You might get there eventually on your own, but thereís something to be said for having a big database.
The history of motorcycle engines powering other vehicles goes back a long way. Look at the original Morgan 3 Wheeler, for example. Almost a century ago, J.A.P. bike engines were plunked onto the front of a strange piece of machinery with two wheels in front and one in the back. It proved to be popular and a rather high-performing vehicle in its time. For this Top 10 list we take a look at other applications for motorcycle engines. As you can imagine with a list like this, there are a wide variety of vehicles. Some are production cars, while others are one-offs or boutique items. And yes, even though this is Motorcycle.com, I want to get behind the wheel of every single one of these! So, if youíre a rep from one of the below companies (or are simply a kind soul who owns one), give me a jingle and letís make it happen!