Jockey wheels rubbing casette (noisy)

craigenty Posts: 960
edited April 2010 in Workshop
Posting this for a friend - he's running a 50-34 compact with a 11-27 casette.

When climbing in the 34-27 the jockey wheel was touching the 27 sprocket with the adjuster screw all the way in. So we put a longer adjuster screw in and now it's noisy in the 50-11

Anyone any experience of this? It's all Dura Ace.

I'm running 50-34 12-27 and 50-35 11-25 on two seperate bikes (have been for years) without any problems.



  • maddog 2
    maddog 2 Posts: 8,114
    check the chain length. Too long and it can do this, shorter helps.

    Some bike/mech hangers do struggle with a 27 cassette and a road mech. Just one of those things I'm afraid. The lastest mechs (6700, 7900) have the top jockey further away from the sprockets, so would solve this problem.
    Facts are meaningless, you can use facts to prove anything that's remotely true! - Homer