Thread: Fixed cog and freewheel need different sized chains?
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Old 07-24-18 | 10:32 PM
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79pmooney
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From: Portland, OR

Bikes: (2) ti TiCycles, 2007 w/ triple and 2011 fixed, 1979 Peter Mooney, ~1983 Trek 420 now fixed and ~1973 Raleigh Carlton Competition gravel grinder

Single speed FWs for road bikes tend to be 3/32". BMXers used to use 1/8". (I have no idea what they are doing now. Campagnolo used to make track quality 1/8" chainrings with colored anodizing for the BMX crowd. I have a blue 144 BCD 1/8" Campy ring.)

1/8" SS drive trains have a 100 year history, 3/32" is relatively new.

Ben
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