Bike Forums - View Single Post - Interested in Building an E-Bike?

05-21-07 | 05:50 PM

#4

adamtki

Senior Member

Joined: Oct 2006

Posts: 635

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Bikes: Soma cyclocross with Bionx PL500HS

You're gonna need a freewheel crank. I wouldn't like the idea of a motor pedalling my feet if I don't pedal. That would also be a waste of energy. Your motor sounds similar to the kit at http://www.cyclone-usa.com.

Ideally, someone out there can build a bicycle frame with a large bottom bracket that is designed to accomodate a motor with a free wheel crank and a torque sensor. The motor would be neatly housed inside the bottom bracket and you wouldn't need extra chains and brackets. The wires would run along the insides of the frame and you'd have power jacks at the front and rear for batteries and/or lights. With an aluminum frame that accomodates 700c tires, and lithium ion batteries, the bike could weigh less than 35lbs. And if you can add road slick tires, you can get incredible range and speed.

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