fitting a new chain

beeankey
beeankey Posts: 12
edited August 2009 in Workshop
Afternoon all

So I was out for a ride this morning heading up a small hill when all of a sudden BANG. Looked down to see the chain falling to the floor. Went and picked up a new chain this afternoon,fitted it,then went for a short spin to see if all was OK. It's not. The chain is slipping (under practically no load). The chain is a KMC X9.93 on campag cassette/chain rings.

My question is - do i need to shorten the chain some more OR did they sell me the wrong chain?

Comments

  • gkerr4
    gkerr4 Posts: 3,408
    sounds like your cassette need replaced too - the new chain shouldn't be 'slipping' at all.

    do you mean when you press the pedals down the bike doesn't move forward as much as you would expect?

    what method did you use to cut / fit the new chain?
  • beeankey
    beeankey Posts: 12
    hello gkerr4

    Yeah the cassette does need replacing too but there was no slipping with the old chain.

    the bike 'rolls' just fine but i can feel / hear the chain slipping.

    Used the big cog to big cog method and then took out a couple of links using a chain splitter and joined the chain up.
  • toslow
    toslow Posts: 85
    Change the cassette , the old chain and cassette wear with , and almost mould to each other . A new chain will never work with that cassette. You might want to look at the front chain rings as well , even though they wear at a slower rate . If the chain has worn to breaking point it may have damaged them to .
  • beeankey
    beeankey Posts: 12
    thanks for the responses

    when the bike was serviced in the March the mechanic did tell me that chain/cassette/chain rings needed replacing.

    guess i'll have to crack the wallet open :(
  • beeankey
    beeankey Posts: 12
    meant to add - can anyone tell me if that chain is actually campag compatible? it's a 27 speed chain on a 27 speed bike.

    thanks
  • gkerr4
    gkerr4 Posts: 3,408
    yes it's fine - it;s a 9speed chain on your 9-speed bike.

    Only in ten speed did campag go for a slightly narrower chain than other brands, but even then people still use KMC chains on them (me included)
  • beeankey
    beeankey Posts: 12
    Thank you gkerr4

    As soon as i hit submit i i realised i good have googled that!! sorry - forums make me lazy!
  • keef66
    keef66 Posts: 13,123
    just been through the same with my son's mtb. Old chain working OK till he overshifted and jammed it so securely between the crank and BB I had to destroy it to get it out. Never mind I thought, overdue a new chain anyway. Nice new chain, first test ride and it's skipping merrily across the teeth of every sprocket. Replaced the cassette and it's good as new. I should really replace the chainrings too, so they don't accelerate wear of the new chain, but I've already replaced half the bike so I'm only replacing stuff as it breaks. Like the rear brake blocks that just disintegrated. Lucky I spotted them; he'd not said anything but when questioned later said he'd noticed the back brake was a bit sharper. That would be the steel backing digging into the alloy rim then.