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New MTB: chain jams at front gearshifter!

Started by Lenny · · Last activity · 7 posts · 345 views

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01 / Original postNew MTB: chain jams at front gearshifter!Lenny · 19 May 2004 02 / This pagePosts 1–7Page 1 of 1 · chronological order 03 / Latest replyPost #7Shaun Rimmer · 21 May 2004

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Original section
Mountain Bikes
Published
19 May 2004
Last activity
21 May 2004
Original author
Lenny
Posts
7
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Public discussion
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345
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0
Topics
Disc brakesMountain bikingFront derailleurs

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  1. Original post
    Lenny
    Archived post
    #1

    I'm admittedly a MTB noob and I'm not ashamed of it at all. :P I bought a
    full-suspension bike just over 2 weeks ago because it had been over 11 years
    since my previous MTB had been stolen from me (a very nice for the time GT
    Karakoram K2), and I wanted me some wheels.

    I got a 2003 model Specialized Rockhopper Comp FSR XC (quite a mouthful) at
    a reduced price - it was brand new - and I am sooo happy with it. The frame
    feels very strong, yet it's light (in my opinion anyway), looks dead sexy
    (Ferrari red!) and the performance is just astonishing. Hydraulic disc
    brakes is something entirely new to me, and I am impressed beyond words by
    their stopping power. The suspension is awesome too - so COMFORTABLE! Haha,
    really, that was perhaps the biggest reason I wanted a FS bike. 😉

    HOWEVER... Every once in a while, the chain is "sucked up" by the gears at
    the crank when I shift to the largest wheel at the front and jams up against
    the gearshifter, obviously hindering me from pedalling any further. It is
    easy to remedy, I just have to backpedal slightly and the chain unjams
    itself, but should it really DO this on a bike of this calibre? I have 2
    years free maintenance on this thing at the place I bought it, I just need
    to know what to tell them to look for when I turn the bike in for its first
    service (within 3 months of purchase).

    Also, it has a tendency to actually shift to a HIGHER gear quite
    spontaneously when I stand up and pedal it up a steep slope. This has
    happened a couple times too, and generally it forces me to pinch the breaks
    and step off, as I am too out-of-shape - at least at the moment - to handle
    high-caliber inclines except at pretty low gears. 🙂 Is this common? I've
    been told it could be caused by flex in the rear suspension, but wouldn't
    the bike designers be aware of this and design the bike so such a problem
    did not occur? I hope it's just an adjustment issue, and fortunately it
    hasn't happened very often either, just a few times. It is something I could
    live with if it stays at a "freak occurrence" level..

    Thanks for any help, people! 🙂

    Report
  2. Westie
    Archived post
    #2
    Lenny said:

    HOWEVER... Every once in a while, the chain is "sucked up" by the
    gears at the crank when I shift to the largest wheel at the front and
    jams up against the gearshifter, obviously hindering me from
    pedalling any further. It is easy to remedy, I just have to backpedal
    slightly and the chain unjams itself, but should it really DO this on
    a bike of this calibre? I have 2 years free maintenance on this thing
    at the place I bought it, I just need to know what to tell them to
    look for when I turn the bike in for its first service (within 3
    months of purchase).

    Take the bike back now and tell them what happens.
    They can probably adjust the front derailleur for you while you wait.
    Or you have a tinker yourself.
    http://sheldonbrown.com/derailer-adjustment.html
    You're unlikely to destroy anything but you may adjust it waaay out if
    you're not sure what you're doing. No drama if you do that either.
    At first glance, it sounds like the high limit needs a tweak and the
    indexing isn't quite right.
    --
    Westie
    (Replace 'invalid' with 'yahoo' when replying.)

    Report
  3. Lenny
    Archived post
    #3
    Westie said:

    At first glance, it sounds like the high limit needs a tweak and the
    indexing isn't quite right.

    Thanks man, I appreciate you taking the time to answer. 🙂

    Report
  4. Shaun Rimmer
    Archived post
    #4

    "Westie" said:

    " No drama "

    Heheheheh, and I thunked only Austruckinfalians said that. You 'turning'
    Westie?

    ',;~}~

    Shaun aRe

    Report
  5. Andy Chequer
    Archived post
    #5

    Take the bike to your LBS and tell them that it suffers from chainsuck.

    Chainsuck is a complete pain in the [censored], is normally cured by replacing the
    chain and/or chainrings and all the front mech tinkering in the world will
    not make a blind bit of difference. It shouldn't happen on a nice shiny new
    bike like yours.

    Andy Chequer.

    Report
  6. Westie
    Archived post
    #6
    Shaun Rimmer said:

    "Westie" said:

    " No drama "

    Heheheheh, and I thunked only Austruckinfalians said that. You
    'turning' Westie?

    ',;~}~

    Shaun aRe

    Struth!! I resent that! :-)
    Me mam's an Austrar-lian. Give a guy a break, eh mate?
    --
    Westie
    (Replace 'invalid' with 'yahoo' when replying.)

    Report
  7. Shaun Rimmer
    Archived post
    #7

    "Westie" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:
    Shaun Rimmer said:

    "Westie" said:

    " No drama "

    Heheheheh, and I thunked only Austruckinfalians said that. You
    'turning' Westie?

    ',;~}~

    Shaun aRe

    Struth!! I resent that! :-)
    Me mam's an Austrar-lian. Give a guy a break, eh mate?

    Heheheh, heyy, naow draahmah mate!

    ',;~}~

    Shaun aRe

    Report

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