Advertise on Bikeforums.net



User Tag List

Results 1 to 4 of 4
  1. #1
    Senior Member
    Join Date
    Aug 2006
    Location
    San Diego
    My Bikes
    Specialized Tarmac Pro
    Posts
    147
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Frame dent=not safe to ride

    My Specialized Roubaix has a dent close to the bottom bracket on the outside of the chainstay. It had obviously been caused by a dropped chain. I took the bike to the Specialized dealer where I bought the bike and they said it "should be OK to ride". Not too convinced about this I took it to Specialized dealer #2. They were much more doubtful and suggested that the Specialized rep take a look at it next time he comes by. So I just got the call from the shop, that the rep had recommended against riding it anymore.

    The dent is about 2 mm in diameter, round and almost 1 mm deep. I know it is hard for anyone here to judge the severity of this but I am just wondering if the rep said this due to liability issues and being overly cautious (sorry I have no pictures).

    The shop suggested a possible repair by Calfee, who apparently does these things and secondly a new frame from Specialized under their crash replacement program that discounts frames about 30%.

    It is pretty easy to put dents into carbon frames and I started to think of the possibilities of something similar happening to more expensive carbon frames. I have been happy with this bike, but now I feel luke warm to bying another carbon frame at all.

    I would appreciate any opinions with regard to the necessity of repair/new frame or go with other materials. So much for looking forward to the rides during the upcoming holiday

  2. #2
    eternalvoyage
    Join Date
    Feb 2007
    Posts
    2,437
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    If you have the money, why not look into other materials, like Reynolds 953?

    I used to like carbon a lot, but this sort of issue has put me off. Now I would much rather have a 953 frame.

  3. #3
    Sometimes knows stuff. rmfnla's Avatar
    Join Date
    May 2005
    Location
    La La Land (We love it!)
    My Bikes
    Gilmour road, Curtlo road
    Posts
    2,538
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    If this happened to steel or even aluminum it would be a non-issue.

    So much for plastic bikes...
    Today, I believe my jurisdiction ends here...

  4. #4
    Senior Member
    Join Date
    Feb 2001
    Location
    England
    Posts
    12,421
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    The chainstay is the most common location for frame breakage in any material (even steel) and is not considered particularly safety critical. You notice the bike feeling a bit soft and making some funny noises. Lance A. sprinted to a mountain-top victory in the Pyrenees on a carbon trek with a shattered chainstay.
    Other locations for breakage have more immediate results (head-tube, fork, seatpost, crank) and will result in injury.
    It is up to you though to decide. Personally I wouldnt ride a carbon frame that was damaged in such a highly stressed area.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •