Thread: help with chainring sizes... ?
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Old 03-12-06 | 09:00 PM
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MacG
don't pedal backwards...
 
Joined: Jul 2005
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From: Minneapolis

Bikes: Surly Long Haul Trucker set up for commuting and loaded touring, old Sekine road frame converted to fixed-gear, various beaters and weird bikes, waiting on the frame for my Surly Big Dummy build



For a typical five-hole ring, measure two neighboring holes from center-to-center and multiply the distance by 1.7 to get the BCD of the chainring.
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