New chain slipping - cassette OK

dsoutar
dsoutar Posts: 1,746
edited October 2012 in Workshop
I fitted a new chain a week ago and had my first trip out since. A very frustrating ride indeed as the chain kept slipping, especially on hills. The cassette's not too old (1000-1500 miles maybe) and having checked the teeth they are all fairly flat and not shark toothed. I fitted the chain (it's a triple) using the advice in Zinn's book. Do I need to take a link out ?

All advice very welcome as I can't go on another ride like that again.

Comments

  • sungod
    sungod Posts: 17,414
    was the old chain badly worn?

    if it was, then it will have worn the cassette, causing a new chain to slip

    if you've still got the old chain, measure it to see how worn it is...

    measure from the centre of a rivet, 12 full links, the rivet at the end will be on the 12" mark for an unworn chain

    when the rivet is 1/16" further along it's time to replace the chain, if it's allowed to reach 1/8" the cassette will have been trashed
    my bike - faster than god's and twice as shiny
  • dsoutar
    dsoutar Posts: 1,746
    The old chain was disposed of unfortunately. I have got a new cassette which I'll pop on and go for a 20 km jaunt with some hills which should be enough to establish if it's the cassette or not.

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