135 0r 140mm Crank
I got a 51t chainring on ebay...and as expected from an ebay sale it is not 130mm BCD, as advertised. It is slightly larger. How do I measure and where do I find, what I suspect to be 135mm BCD cranks?
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135 is Campagnolo
130 is Shimano Specialities-TA make cogs in all tooth counts for both sizes, and more. |
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