Lowtechs E-Bike Project

Now presenting the first Photos of my Ebike DIY Friction drive. 

Its gonna make about 40 Km/h using a Turnigy Aerodrive Motor,

a HobbyKing SS 90 ESC, a Servo tester for Speed Regulation and�

a 6s 5700mAh Zippy Flightmax LiPo (now just for Testing) if they work good i will maybe raise the Capacity buying some more 5700 Zippys and making a 6p3s Pac

Those zippys are perfect for testig different drives because every cell is packed in its own Hardcase package so you easily can vary the number of cells you are using. Just plug them toghether with 4mm Bullet-Connectors.

Here the Complete drive power system:

I think its a really cute little and compact friction drive system.

Edited by lowtech - 18/Jun/2010 at 7:02pm

Looks great.. As Todda says, keep us posted.

Pedal start right? No torque at 0 rpm.

Originally posted by vasy1 Looks interesting. Will it put a lot of wear on the tire?

i think it wont be a lot of wear because there gonna be a folding mechanism so there will be no friction pressure when the motor isn't running.

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i think it wont be a lot of wear because there gonna be a folding mechanism so there will be no friction pressure when the motor isn't running.

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Time will tell. I remember when I was a kit I had a bike light powered by similar system, dynamo light I think it is called. There for sure was wear on the side of the tire from all the friction but it was not too bad. But I could for sure see that after some time 1/2 of the sidewall was gone. I killed the tire before it wore through.