Dropping Chain

NWLondoner
NWLondoner Posts: 2,047
edited September 2012 in Workshop
Over the past few weeks I have been dropping my chain when shifting from the 34t to the 50t. Until this recent occerance I've never dropped a chain when changing gear. I can save the chain by changing back down to the small ring while still riding but I've had a couple of near misses.

Would this be the cable being too tight or does the outermost screw need adjusting?

I use a Ultegra front derailuer

Comments

  • sungod
    sungod Posts: 17,496
    probably the outer limit screw needs adjusting
    my bike - faster than god's and twice as shiny
  • alihisgreat
    alihisgreat Posts: 3,872
    sungod wrote:
    probably the outer limit screw needs adjusting

    this.
  • desweller
    desweller Posts: 5,175
    As it was previously OK I'd check that the derailleur alignment is still correct; sounds like it's had a knock.
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  • buckmulligan
    buckmulligan Posts: 1,031
    I had this start happening out of the blue on my winter bike last year. I put it down to chain stretch making it just sloppy enough to hop over the big ring (as you describe) with an overzealous shift up.

    Give the upper limit screw on the front mech a half turn in and it should stop it.

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