Thread: Rim Bulge
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Old 08-29-25 | 08:19 AM
  #16  
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cyccommute
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Originally Posted by maddog34
Concaveness can vary, depending on braking technique, pad alignment, rim style, and pad service intervals.

brake type can also change it.
Having a concave braking surface is never a good thing. It’s an indicator that the walls are thinning and that the tire is pushing the rim outwards.
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