Bike Forums - View Single Post - Broken chain, but why?

04-16-24 | 05:35 PM

#18

FBinNY

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Joined: Apr 2009

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From: New Rochelle, NY

Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter

Quote:

Originally Posted by zandoval

Could it be constant shifting under load?

Could this a Brifter use technique problem?

I doubt it. Shifting under load causes nicks and peening of the plates, especially outer ones. It also forces plates outward on pins.

So we see stiff links, and breakage by plates coming off pins. However, I wouldn't associate it with an inner plate failure like we have here. (which, BTW is the 1st I've ever seen).

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