front chain ring shifting

bluemoon
bluemoon Posts: 38
edited March 2008 in MTB workshop & tech
Anyone got any ideas, when i shift from middle chain ring to small the front mech does not always shift far enough. i have tried the adjuster screw etc but just doesn't make any difference???

Comments

  • nicklouse
    nicklouse Posts: 50,673
    too much cable tension.

    have a read of parktools.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • bluemoon
    bluemoon Posts: 38
    But the front mech is on its stops. and there is plenty of slack in the cable when in the small ring. any other ideas
  • nicklouse
    nicklouse Posts: 50,673
    adjust the lower stop screw.

    Or what have you also done? new parts or....?
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • bluemoon
    bluemoon Posts: 38
    it's a new deore front mech the adjuster is fully out
  • nicklouse
    nicklouse Posts: 50,673
    Ok full story. what was the old? what is the frame and crankset.

    and the new deore which version. pics may help but you may have got the wrong mech and a trip to the LBS may be needed to sort out which.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • bluemoon
    bluemoon Posts: 38
    lbs fitted it think i'll go back to him again he's looked at it once. the previous mech was the same type never mind
  • nicklouse
    nicklouse Posts: 50,673
    In that case it is LBS time as if the correct mech has been correctly fitted it should work fine.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown

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