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Old 10-03-16, 04:31 AM
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Bikes: Custom Carbon Fibre Ultegra Di2 touring bike

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Originally Posted by saddlesores View Post
i's guessing it's 'cause the roller pins are shorter for narrower chains,
but still have the same diameter.

ever'thing else being'd be applying the same force to a
much smaller area, so makes sense the roller pins would wear faster.

logistically, you'd assume 11-speed and 12-speed chains would
stretch even faster.
Interesting, I was just wondering why that was, I guess now I know the answer.
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