protecting my new BMC

Rudd
Rudd Posts: 264
edited February 2009 in Workshop
Hello all,

On saturday I will pick up my first ever carbon frame - a BMC team machine. I have heard some horror stories though about owners of carbon frames writing them off when the changing gear from large ring to small on the front. As sometimes can happen the chain comes off and becuase the rider is still pedalling it gets jammed between the rings and seat tube and or chain stay. This happended to a friend of mine on his Cervelo and resulted in enough damged to the frame to render it useless. I am considering wrapped the exposed areas of the frame in gaffer tape to try and mitigate this. Does anyone else do this? If so is there a more durable solution?

Any assistance much appreciated.

Comments

  • ugo.santalucia
    ugo.santalucia Posts: 28,336
    ... or coat the frame in bubble wrap... or use only the 53 ring... or not ride at all!

    Of course there is a more sensible solution, it's called "dog fang"

    http://www.parker-international.co.uk/4 ... -Fang.html
    left the forum March 2023
  • cougie
    cougie Posts: 22,512
    Cant really see how you could wreck a CF frame by dropping the chain ?

    If the chain is off - how are you pedalling it more than half a rev ?
  • Rudd
    Rudd Posts: 264
    Thanks Ugo I will look into that - certainly preferable to not riding!

    Cougie- all I know is that my friend put enough damage in his chain stay to make the bike unsafe. It does seem very unlikley and I wonder if his derailleur was set up corrected- but better safe than sorry i think.
  • Monty Dog
    Monty Dog Posts: 20,614
    I've seen it, chain gets caught between the inner ring and the chainstay - kerrunch - usually due to rider pedalling backwards and forcing chain into gap. Actually more of a problem with carbon MTB frames and chainsuck. Deda Dog Fang stops the chain dropping into the gap. That said, it's often down to poor bike set up rather than carbon frames per se - I've also seen a titanium frame where the rider didn't notice that the chain wore clean through the seatstay because they always rode on the small sprocket
    Make mine an Italian, with Campagnolo on the side..
  • cougie
    cougie Posts: 22,512
    Noooooooo ! Thats shocking about the Ti frame !
  • MrChuck
    MrChuck Posts: 1,663
    ugo.santalucia wrote:
    Of course there is a more sensible solution, it's called "dog fang"

    http://www.parker-international.co.uk/4 ... -Fang.html

    I thought all carbon frames came with one of these- my Scott had one on it. And as Parker Int says, the pros use them!
  • Rudd
    Rudd Posts: 264
    good that it came with the Scott. I will get one.

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