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shimano chainrings(2 posts)

shimano chainringsdoped
Sep 14, 2003 5:57 PM
are the triple and double chainrings for shimano the same? and only difference is at the crank?
re: shimano chainringsgbecker
Sep 14, 2003 7:12 PM
The middle ring on a triple has ramps and pins to help move the chain to androm the small ring. It is different from the small ring on a double.