1X road bike
05-29-23, 07:28 AM
#51
Method to My Madness
Join Date: Nov 2020
Location: Orange County, California
Posts: 3,653
Bikes: Trek FX 2, Cannondale Synapse, Cannondale CAAD4, Santa Cruz Stigmata GRX
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Bah Humbug PeteHski tomato coupe For me, the big chain ring and second largest cog combo is still noisy, but noticeably less so than big / big, so whether I shift onto the small ring on not depends on the upcoming terrain.
The noise is a function of chain angle, which is affected by both the chain line and the chain stay length. My road bike has relatively short chain stays which increases the chain angle while cross-chaining. My gravel bike has longer chain stays, but the resulting decrease in chain angle is offset by the increase in chain angle from the increased chain line of the GRX crankset.
I read somewhere that an SRAM Red 22 chain is more tolerant of cross-chaining. I don't know if that is true, but if it is, that implies that the links in that chain has more lateral movement, which I am not sure is a good thing.
The noise is a function of chain angle, which is affected by both the chain line and the chain stay length. My road bike has relatively short chain stays which increases the chain angle while cross-chaining. My gravel bike has longer chain stays, but the resulting decrease in chain angle is offset by the increase in chain angle from the increased chain line of the GRX crankset.
I read somewhere that an SRAM Red 22 chain is more tolerant of cross-chaining. I don't know if that is true, but if it is, that implies that the links in that chain has more lateral movement, which I am not sure is a good thing.
