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Old 06-26-2010, 10:35 PM
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GearNut GearNut is offline
Motorized Bicycle Elite Member
Join Date: Aug 2009
Location: San Diego, Kaliforgnia
Posts: 5,106
Default Re: Drive sprocket problems

The tips of the teeth commonly need to be thinned a bit to allow the chain to go over the sprocket correctly. Thinned on the inboard and outboard faces of the sprocket, not in the valleys.
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