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Mounting Techniques Every frame is different. Share and ask questions about mounting your motorized bicycle engine kit to your bicycle frame or bicycle rack

Changing crankset to 3-piece


Discussion at Motorized Bicycle Engine Kit Forum in the Mounting Techniques forum. Probably not....
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Old 11-29-2008, 01:05 PM
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Default Re: Changing crankset to 3-piece

Probably not.
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Old 11-29-2008, 08:41 PM
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Default Re: Changing crankset to 3-piece

Quote:
Originally Posted by pi-rat View Post
cant you make this into a shifter kit by putting a #420 chain sproket on the left side so it will spin te gears on the right? if it works ive got a 21 speed motorbike !!!! i think that i might have to cut off the pedals for it to work though and put a case over it so i dont cut off my leg on the chain and sproket.
yep, jack sahft shifter setup with out the jackshaft.

you'll need to asses the power and torque of your engine to calculate the primary reduction needed form the engine output to your lefthand crank sprocket. it also depends on what speeds you want to achieve.

don't forget some sates require the pedals, be sure to check your local laws.

steve
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