Chain Skipping..

Discussion in 'Cycling Equipment' started by Sam123, Nov 2, 2010.

  1. Sam123

    Sam123 New Member

    Joined:
    Aug 1, 2009
    Messages:
    204
    Likes Received:
    0
    I've brought a new chain and cassette and its been skipping recently i took it to the bike shop to get it fitted tried it out it skipped took it back for them to sort and it still skips what could be the problem? Its clean. I've never replace the chain ring. And I've got no money to buy another 1 of them at the moment.

    Also another problem i punctured about 2 days ago i got give a inner-tube and when i try to pump it up with my track pump it pops off at around 80 PSI whats the cause of this? I need to get around 120 PSI
     
    Tags:


  2. tafi

    tafi Member

    Joined:
    Jul 31, 2003
    Messages:
    1,038
    Likes Received:
    17
    Skipping on the cassette or on the chainring?

    One possible cause is a stiff link. If it's a new chain, typically the link where you put the joining pin. Or if you use a powerlink or wipperman link, fitting this upside down can cause skipping too.

    Regarding the inner tube: The pressure in the pump needed to open the presta valve (to let air into the tube) may be higher than the pressure which can be held by the gland seal in the pump head. The seal needs tightening.
     
  3. Sam123

    Sam123 New Member

    Joined:
    Aug 1, 2009
    Messages:
    204
    Likes Received:
    0
    I got my gear cable replaced. It worked. No skipping no noise feels like a new bike again.
     
  4. tafi

    tafi Member

    Joined:
    Jul 31, 2003
    Messages:
    1,038
    Likes Received:
    17
    Then skipping wasn't your problem. Sounds more like the derailleur was out of tune (fixed by adjusting cable tension after cable replacement)..
     
  5. Couloir

    Couloir New Member

    Joined:
    Jun 8, 2009
    Messages:
    5
    Likes Received:
    0
    Brief note: I really appreciate this website. I've found over the years--both as a member and as a lurker, before I signed up, that there is so much knowledge in this community. I searched the site recently regarding chain skip.

    Last year, just before cross season I replaced pretty much every part of my drive-train on my Cannondale cyclocross bike. The derailleur, the cassette, the chain and all related cables were all new. After last season, I washed everything thoroughly and put the bike away and began using the other bikes.

    When I pulled my rig out a couple of weeks ago for a training ride, my chain began skipping horribly. I tried the usual things to solve the problem, but eventually came here and researched the issue and found what I thought were obvious fixes. I went through the gauntlet of fixes, but unfortunately, in the end, the chain continued to skip.

    Then tonight, as I was lubing the chain (thinking I can live with the skipping for a season), I began to wipe off the excess oil on the chain when all of a sudden I feel an imperfection in the chain. I ran it around in the rag several more times, and sure enough, a chain link was bent. Even though it was a new chain, obviously at some point I smashed a portion of the chain and it became bent and essentially, caused all the problems.

    So, to boil it down, no matter how new the components are, check every thing to try and solve the issue. And, don't discount obvious parts as being the culprit, simply because they're new.
     
Loading...
Loading...