Sram rival chain coming of at front.

danny7060
danny7060 Posts: 13
edited September 2012 in Workshop
I have a Ribble Gran fondo that is only a couple of months old. About 3 weeks ago the chain started coming of at the front when I changed gear at the back. My LBS had a look and said my front derailier was slightly bent and also slightly out of line allowing the chain to come off. They adjusted it and all was fine for a couple of days. Now the chain doesn't come off but it wouldn't change from the small ring to the large at the front. The bike is now in my LBS if they set it so it changes the chain comes off, if they re adjust it a quarter turn it wont change up. Any ideas would be greatly appreciated as I don't want to have to send it back to Ribble and not have a bike for weeks.I'm also doing a sportive in October so this is ruining my training. Grrrrrr

Comments

  • caad8
    caad8 Posts: 51
    Cable stretching in - follow up with limit screw adjustment/turning the barrel adjuster?

    Or LBS didn't give enough outer/upper limit at the first visit?

    Without seeing it that's my 2p
  • jonomc4
    jonomc4 Posts: 891
    my 2p - adjust upper limiter and maybe loosen/ tighten the cable a little also check the dérailleur is the correct height from the large chain ring.

    Really SRAM and utube have so many email on this.

    SRAM pdf - http://cdn.sram.com/cdn/farfuture/SBapq ... -rev-a.pdf
  • gin0rm0
    gin0rm0 Posts: 40
    SRAM front mechs are a weak point imo. Had similar problems with my rival front mech (i.e. It bent). In the end I bought an Ultegra one and it's been fine for thousands of miles.
  • danny7060
    danny7060 Posts: 13
    thanks for all your advice. The bike isn't fixed. Really annoying. gin0rm0 will an Ultegra mech work with a sram rival shifter? Apart from sending the bike back for repairs this seems my only option.
  • tmg
    tmg Posts: 651
    Try sticking a force mech on instead if you want to stay sram
  • danny7060
    danny7060 Posts: 13
    I've looked it up online and most people say it works better than the sram ones. So I've ordered a Ultegra 6600. For £17.99 I think it's worth a punt.
  • gin0rm0
    gin0rm0 Posts: 40
    danny7060 wrote:
    thanks for all your advice. The bike isn't fixed. Really annoying. gin0rm0 will an Ultegra mech work with a sram rival shifter? Apart from sending the bike back for repairs this seems my only option.

    Yep, it'll definitely work. My shifters are still Rival (with Ultegra front mech).
  • danny7060
    danny7060 Posts: 13
    All done, works well.

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