Cassette slipping when pedalling - what is the cause

fearby
fearby Posts: 245
edited May 2008 in Workshop
I have had a problem with gears slipping and jumping but another alarming problem has occurred a couple of times - the cassette will just turn round when I pedal without turning the back wheel!
Is this the freehub at fault? The chain is meshing fine with cogs and jockey wheels.
:shock:
The chain and cassette are new so there is no question of a problem there.
It has happened out of the saddle going uphill and is alarming to say the least.
:o

Comments

  • wheeler585
    wheeler585 Posts: 552
    Sounds like your free hub maybe on its way out!
    Up hup hup hup.....fricking hate that!
  • meagain
    meagain Posts: 2,331
    And quickly...
    d.j.
    "Cancel my subscription to the resurrection."
  • fearby
    fearby Posts: 245
    meagain wrote:
    And quickly...

    Please expand on this

    Why would it happen once then fix itself?
    Does something need tightening?

    :?:
  • Monty Dog
    Monty Dog Posts: 20,614
    Definitely your freehub - if its on its way out it's never going to get better - it'll just stop working and it'll be a long walk home. Get it soted sooner rather than later.
    Make mine an Italian, with Campagnolo on the side..
  • daniel_b
    daniel_b Posts: 11,980
    This exact problem happened on my gf's mtb, but in that case it was only the freehub budy that had gone.

    We had correct tools, and got the part from our lbs for the princely sum of £11.99.

    Problem sorted :D

    As mentioned, pretty dangerous, if it spins out on a r'bout, so get it sorted asap.

    Dan
    Felt F70 05 (Turbo)
    Marin Palisades Trail 91 and 06
    Scott CR1 SL 12
    Cannondale Synapse Adventure 15 & 16 Di2
    Scott Foil 18
  • redddraggon
    redddraggon Posts: 10,862
    It's not your Fulcrum Speeds is it?
    I like bikes...

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  • fearby
    fearby Posts: 245
    redddraggon wrote:
    It's not your Fulcrum Speeds is it?

    No - it is my training bike with a Powertap SL hub so even more expensive!
  • ademort
    ademort Posts: 1,924
    The same thing happened to me just after christmas, 06.30 on a dark morning, middle of nowhere, went round a bend and suddenly everything stopped, legs were moving but bike wasn,t. Had a nice walk and push home about 5 mile.Chain slipped a couple of times that morning and then it went alltogether. Lucky i wear MTB shoes to work or i would have really been in the s@@t. As above members have said get it fixed. greetings Ademort
    ademort
    Chinarello, record and Mavic Cosmic Sl
    Gazelle Vuelta , veloce
    Giant Defy 4
    Mirage Columbus SL
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