Thread: Why would a rim say "for rim brakes only"?
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Old 08-17-20, 05:13 PM
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royphotog
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Originally Posted by AlmostTrick
Interesting theories here. I believe in the Sheldon/phughes/tomtom theory: rim brakes do not transfer force to the hub, and discs do.

It seems clear to me:
Rim brake force is transferred to the fork, where it is attached. (or frame in the rear)

Disc brake force is transferred to the hub.

Set up two identical bikes and rims, with the type of brake being the only difference. Loosen all the spokes a little at a time and do some power braking. First wheel to fail will be one with the disc.
Interesting experiment, and one that would prove the theory.
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