Bicycle Mechanics - interchanging chainrings?

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wearyourtruth
06-06-10, 07:17 PM
i had a set of sugino triple chainrings, and the outer ring broke a few teeth in an accident. i have a shimano SG chainring laying around of the same tooth count and BCD... can i just slap that on and keep riding? is it generally okay to mix chainring brands? or are the varying ramping teeth/pins/etc going to be all mixed up and make a mess of things?

HillRider
06-06-10, 07:23 PM
The ramps and pins may not match up perfectly but the shifting should still be pretty good. Yes, as long as the BCD is the same, substitute at will.
Jeff Wills
06-06-10, 07:34 PM
i had a set of sugino triple chainrings, and the outer ring broke a few teeth in an accident. i have a shimano SG chainring laying around of the same tooth count and BCD... can i just slap that on and keep riding? is it generally okay to mix chainring brands? or are the varying ramping teeth/pins/etc going to be all mixed up and make a mess of things?

It shouldn't be a problem. I have SR, Shimano, and Sugino chainirings on my Ultegra crank:
http://home.comcast.net/~jeff_wills/jeff-grr/pages/jeff-grr%20004.htm
I haven't had any huge issues with shifting.