Well I made the purchase.

The bike already has a compatible throttle and controller, so now I have a new motor with gear (The old one has a direct drive wheel attachment) I also have a chain and rear drive assembly including sprocket coming.

I'm thinking build an open box for the drive assembly. Attach the box to the top rear of the bike over the wheel and at the wishbone. then secure it to the bike frame at the axles. There point hook up don't ya know. Then attach the motor to the wishbone with a couple of big hose clamps. Hook up the wiring and the chain and it should run.

My question is... There is a larger sprocket on the rear wheel than the direct drive was thick, so the drive wheel will turn slower, but it is much bigger than the direct drive wheel. 7.5 inches vs 2.5 inches. I wonder if the top speed will be increased. I'm thinking it will, since most of the rpms with the drive wheel got wasted anyway in the scrubbing motion. I'll know in a week.

If this works, it means simply that anyone who can find an old scooter at a yard sale can easily build an ebike. Wouldn't that be a kick in the butt.

If it had the right sprocket I could hook it to the china engine and have the perfect bike. Maybe I can find a #35 gear to replace the #41 gear in he china bike.

__________________
visit my blog for Riding in the hood,... The home brew bike journal....http://frictiondrivebicycles.blogspot.com/ The deacon's fiction (new installment daily).... http://chinesekitmotorbike.blogspot.com/

http://freekibble.com feed the homeless dogs