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Got the right pulley wheels? Installed in the right location and orientation? Is the chain correctly routed through the derailleur? If you look at the derailleur from behind, is the pulley wheel correctly aligned with the chain/cassette cog? Is the derailleur hanger correctly aligned/not bent?
Tijs-
everything seems fine, jockey wheels are correct and all installed/routed ok-except when I shift sometimes the derailleur seems to pull/hang inwards at at a very slight angle, as if it's only half completed the shift. I think this is because the chain is failing to mesh with the jockey wheel though, a sympton rather than the cause. If I over shift then shift back to the gear I want it seems to hang straight though. It's almost like it only half completes the shift sometimes.
jeff80
Having a bit of an issue with the shifting on my Record 11s rear Mech-the chain is not meshing properly with the higher up (ie the one behind the mech itself) of the two jockey wheel in some higher gears (although not all)-it's missing this jockey and running alongside it so if I backpedal for any reason (such as stopped at lights etc) the chain catches and gets snarled up.
Is this just a case of poor adjustment or another issue.? Anyone else experienced this?I can't seem to get the 'tuning' of the gears quite right on this set up so it runs smoothly on all and shifts to all the gears, but that could just be my own ineptitude....