well, its not like a clutch... comet and hoffco are just the CVT. The engage RPM is when the V-pulley starts to get smaller and change gear. Look at the manuals for them and the exploded view. It starts to pull outward on these little feet that force the pulley to get smaller and move in, thus changing the gear ratio. I looked at them and they actually said they're 95% efficient, and not a bad price at all.
I might get one to experement with sometime. So, Its automatic changing, but it would be cool if it could be changed with a cable or something... so you could decide the ratio. But I don't know if it wouldn't be better to have it automatically adjust the torque needed to accelerate... so why go manual. On Nov 2, 2007 6:44 PM, Bob Martin <[EMAIL PROTECTED]> wrote: > > > Is anybody interested in CVT Transmissions? I've never tried one on an > electric bike, but it works purdy good on my drill press. I think the > problem with aftermarket CVT transmissions (Like Hoffco/Comet, for instance) > is that they disengage and reengage at some ? RPM to allow internal > combustion engines to idle (Putt, Putt, Putt, ...) These transmissions are > being used on snowmobiles, ATV's, GoKarts, Minibikes, etc...I've been trying > to figure out which one to buy and modify into a manually operated CVT that > is always engaged, exactly like my drill press. I would gladly gut my drill > press, but it's only rated for fractional HP. If we can put our heads > together we can develop a pretty cool bike tranny. Transmissions will help > us go faster! Later, Bobcat -- Travis Gintz 1986 Honda VFR AC conversion Http://blog.evfr.net/
