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Old 05-29-2012, 09:07 PM
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professor professor is offline
Motorized Bicycle Elite Member
Join Date: Oct 2009
Location: Buffalo ny area
Posts: 501
Default Re: How make a Chain tensioner ?

Derailer chain is slightly narrower than coaster type.
Idler sprockets are available from McMaster Carr.
I have welded sprockets to modified V belt idlers.
One suggestion: the strongest mount would bridge two sections of the rear frame instead of just sitting on one rail.
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