Look up 3/32 and 1/8th chains. Sheldon brown's site has great info.
You want 1/8th (the wider of the 2) if either your chainring or cog are 1/8th.
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Look up 3/32 and 1/8th chains. Sheldon brown's site has great info.
You want 1/8th (the wider of the 2) if either your chainring or cog are 1/8th.