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Old 06-20-2011, 12:01 PM
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biknut biknut is offline
Motorized Bicycle Elite Member
Join Date: Sep 2010
Location: Dallas
Posts: 6,280
Default Re: OP Roller...need some help!

I've built one OP Roller.

You don't want the sprocket touching the hub. You'll have to enlarge the sprocket hole so it doesn't touch the dust cap on the hub.

I was able to get the stock chain to work without touching the tire.

YouTube - ‪Bruce's OP Roller Motor Bicycle‬‏
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