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105 crankset / rings(3 posts)

105 crankset / ringsjrm
Dec 13, 2001 12:48 PM
I have a 9 spd , double, 105 crankset that i want to use on a CX bike. It now has standard issue 53/39 chainrings. How much smaller chainrings can i put on this crank? thanks
38nfm.
Dec 13, 2001 1:10 PM
The 105 crankset spider uses a 130mm bolt pattern diameter...Cima Coppi
Dec 13, 2001 1:21 PM
A 38 tooth chainring is the smallest inner ring that will fit on your spider, and typically the outer ring is a 46 or 48 tooth ring.

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