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Is my Chainring worn?

teebs_123teebs_123 Posts: 340
edited June 2014 in Workshop
Hi Folks,

I'm having issues with the chain jumping on the small chainring. I've tried different chains, a new rear mech with no success.

I've compared the teeth to the same groupset on another bike and the 34 ring does look very worn in comparison.

It's a Shimano 6700 on a Scott Foil 20 that's done 6,000 miles including 1 full winter. Probably not looked after as well as it should've been.

Thoughts?

IMAG0355.jpg

IMAG0354.jpg

Andy
Orbea Orca OMX DI2 MyO
Kinesis 4s Di2

Posts

  • 47p247p2 Posts: 324
    Looks completely gubbed
  • sungodsungod Posts: 12,213
    gubbed

    adjective

    1 informal in a difficult or hopeless situation; ruined or broken.
    my bike - faster than god's and twice as shiny
  • teebs_123teebs_123 Posts: 340
    sungod wrote:
    gubbed

    adjective

    1 informal in a difficult or hopeless situation; ruined or broken.

    Ha! Excellent! I've had a look at a new Ultegra 6700 on Wiggle and there is a stark difference on the profile of the rings. Expensive lesson learnt!
    Orbea Orca OMX DI2 MyO
    Kinesis 4s Di2
  • 47p247p2 Posts: 324
    sungod wrote:
    gubbed

    adjective

    1 informal in a difficult or hopeless situation; ruined or broken.


    Good old fashioned Scottish adjective :lol::lol:
  • xdocxdoc Posts: 331
    Well I have learnt something today, not what a warn chainring looks like, but a new word,,,, gubbed,,, love it :D
  • Serious CatSerious Cat Posts: 489
    You should get a he'll of a lot more than 6000 miles out of a chainring
    This serious internet site..............I serious cat
  • Bar ShakerBar Shaker Posts: 2,313
    Not if your chain was gubbed too.
    Boardman Elite SLR 9.2S
    Boardman FS Pro
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