Chain Slipping

Marc0_11
Marc0_11 Posts: 39
edited January 2012 in Workshop
Just put a new chain on my road bike but when and torque is applied the chain slips and feels like its changing gear but doesnt if you know what I mean. Any ideas or advice on how to rectify much appreciated. Cheers

Comments

  • jonsi
    jonsi Posts: 44
    Why did you change the chain and did you change the cassette at the same time? If the chain had stretched it may have damaged the cassette so that could cause the slipping.
  • Marc0_11
    Marc0_11 Posts: 39
    The chain was beginning to stretch the 0.75 on my stretch gauge fit in the links however the 1.0 did not. I did not. Hangs the casette
  • Marc0_11
    Marc0_11 Posts: 39
    That should be change the cassette
  • sungod
    sungod Posts: 17,405
    as above, sounds like the chain has worn too far, once this happens cassette wear accelerates, then on a worn cassette a new chain will skip

    some gauges are not very accurate, old skool method is to use a ruler

    it tells you how to measure a chain on this page (scroll down) http://sheldonbrown.com/chains.html#wear

    if you've got the old chain, put it back on and just ride it until the chain/cassette are so knackered that you have to change them (then put your current new chain on, plus new cassette)

    if you can't put the old chain back on, fit a new cassette

    you should only have to replace cassettes every 3-4 chains, maybe more (i have a few chains and swap/clean them every now and then, so everything wears together)
    my bike - faster than god's and twice as shiny
  • knack-knees
    knack-knees Posts: 56
    sungod wrote:
    it tells you how to measure a chain on this page (scroll down) http://sheldonbrown.com/chains.html#wear

    Does it make a difference if your chain is 10 speed, 9 speed etc. I suppose I'm trying to figure out if chain links are a standard length?
  • sungod
    sungod Posts: 17,405
    modern chains are all 0.5 inch pitch
    my bike - faster than god's and twice as shiny
  • knack-knees
    knack-knees Posts: 56
    cheers Sungod.

    Just went to measure mine and it's 25.6cm so time to change the chain.... glad I came across this thread, probably saved me a new cassette
  • Marc0_11
    Marc0_11 Posts: 39
    Is there any chance that the derailer cabel might need adjusting?
  • sungod
    sungod Posts: 17,405
    it's possible, no harm trying it

    a new chain will slip most on the cogs that are most worn, this feels quite different to rear mech being out of line
    my bike - faster than god's and twice as shiny

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