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06-21-2008, 02:39 PM

What sort of reduction in RPM's am I likely to get switching from a 42 to a 36 or 38 tooth rear sprocket? I have the 17 front.

06-21-2008, 02:39 PM	#1
Guest Posts: n/a	36 or 38 tooth rear What sort of reduction in RPM's am I likely to get switching from a 42 to a 36 or 38 tooth rear sprocket? I have the 17 front.
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