Is this a problem?
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  1. #1
    MDM
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    Is this a problem?



    2007 Trek Madone 5.2, cracking around bottom bracket shell. Seems cosmetic to me, but don't know. No creaks or knocks or looseness in the bottom bracket that I've observed.
    Last edited by MDM; 4 Weeks Ago at 05:21 PM.

  2. #2
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    Maybe. Looks like a crack in the epoxy bonding the BB shell to the frame. Bike shop inspection and possible warranty claim is in order. Oh wait a 2007 frame. Yeah might be time to retire it or put in on the trainer.
    Well, you know, that's just, like, your opinion man. - The Dude

  3. #3
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    Quote Originally Posted by MDM View Post


    2007 Trek Madone 5.2, cracking around bottom bracket shell. Seems cosmetic to me, but don't know. No creaks or knocks or looseness in the bottom bracket that I've observed.
    I say definitely have a shop look at it. Itís not worth the risk not to. Assessing carbon can be tricky when problems occur.
    Every climb has its end, for verily with difficulty there is relief...

  4. #4
    'brifter' is f'ing stupid
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    Quote Originally Posted by OldChipper View Post
    Maybe. Looks like a crack in the epoxy bonding the BB shell to the frame. Bike shop inspection and possible warranty claim is in order. Oh wait a 2007 frame. Yeah might be time to retire it or put in on the trainer.
    What do you mean? Trek has a lifetime warranty so if that is indeed a warranty issue (doesn't look like it to me) they'll cover it.
    #promechaniclife

  5. #5
    MDM
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    Is this a problem?

    Quote Originally Posted by cxwrench View Post
    What do you mean? Trek has a lifetime warranty so if that is indeed a warranty issue (doesn't look like it to me) they'll cover it.
    Unfortunately, I bought the bike used so there's no warranty. I think it's just a fillet of epoxy on the outside that's cracked and the strength of it is not important. I put force in the cranks with my foot to flex the bottom bracket to see if the crack opened up more. It didn't, so I don't think the bottom bracket shell is debonded internally.

  6. #6
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    Quote Originally Posted by cxwrench View Post
    What do you mean? Trek has a lifetime warranty so if that is indeed a warranty issue (doesn't look like it to me) they'll cover it.
    Ah, didn't know that not being a Trek fan. That's pretty cool though.
    Well, you know, that's just, like, your opinion man. - The Dude

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