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  1. #1
    Trail Ninja
    Reputation: Varaxis's Avatar
    Join Date
    Mar 2010

    Pedal strikes and chainring/bashguard strikes = frame damage?

    I wonder how many frame designers take such impacts into consideration when optimizing frame strength. Breaks happening around the BB and chainstay bridge area seem a bit too common on racy bikes that seem to have been FEA optimized and all.
    We're all on the same ship, and it's sinking.

  2. #2
    Reputation: mimi1885's Avatar
    Join Date
    Aug 2006
    I think most if not all, especially carbon frame. It's still inevitable for a carbon frame on the skinny to have a significant BB damage when falling or slipping off the skinny. To be fair, alu BB area may not survive as well. I know of a few that do omidirection layer around the BB area.

  3. #3
    Trail Ninja
    Reputation: Varaxis's Avatar
    Join Date
    Mar 2010
    Was wondering more on the lines of, do these manufacturers do such additional testing on specific test rigs. I know they have various other destructive tests, like ultimate strength of the headtube/front-end and fatigue tests, as required by various safety standards (CEN, ISO, ASTM, CPSC, etc.), but I wonder if they add any other tests such as this, to more thoroughly test their designs' toughness and reliability, particularly for carbon frames.
    We're all on the same ship, and it's sinking.

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