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rim life

edited February 2010 in Workshop
1) When metal/carbon braking sufrfaces are 'dead' is there a way to 'repair' them?

2) are carbon surfaces better or worse for braking?

3) I would think that the carbon surfaces last longer. true?


  • 1. No idea
    2. Worse from what I hear, especially in the wet
    3. False, I think (although since you'd not ride them in the wet maybe true!).

    I would have thought if carbon was more durable then Look wouldn't have put metal plates on their carbon Keo Max pedals recently to stop wear.

    Must add these are opinions/research rather than first hand experience.
  • John.TJohn.T Posts: 3,698
    1/ No.

    2/ Worse in the wet and can be less predictable in the dry.

    3/ Given the same riding conditions I would say false.
  • Monty DogMonty Dog Posts: 20,614
    Agree with John T:
    1. When rims are worn you bin them
    2. Braking on carbon rims is less efficient and grabby - you cannot mould / machine the surface as flat as an aluminium rim and the thermal properties of the material makes it harder to work with a rubber blocks.
    3. Carbon is softer than metal and so will wear quicker.

    Carbon rims are nothing like as resistant to impact damage - a pothole can finish-off a rim.

    The 'carbon' is your pedal cleats is in fact a filled thermoplastic whereas true 'carbon' is typically a matrix or carbon/ compsite fibres witinh a thermoset resin.
    Make mine an Italian, with Campagnolo on the side..
  • maddog 2maddog 2 Posts: 8,114
    Facts are meaningless, you can use facts to prove anything that's remotely true! - Homer
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