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10 speed shifting problem on cassette side (Shimano 105)

NeillyyNeillyy Posts: 15
edited May 2010 in Workshop

Perhaps some kind person might have some suggestions as to my problem.

To start shifting up or down the cassette I have to click, then click again to get an actual gear change. After that the chain will shift in that direction fine. To change direction or move the opposite way on the cassette, I will have to click once in that direction then click again to get the gear to change. I can get all the gears, it will 'sort itself out' when near its limits, and the bike is okay to ride, for instance the chain isn't skipping etc.

The BB is new, the cable is new, the cassette is only a couple of months old, and the cable is new. This only leaves the rear mech itself or the shifter. Or am I missing something?

Any suggestions, as Ive not had this issue before.

Thanks in advance,


  • John.TJohn.T Posts: 3,698
    How old is the rear loop of outer cable. If the liner is worn through it really messes up the indexing as the cable 'hangs' in the loop.
  • skyd0gskyd0g Posts: 2,540
    It suggests there may be a problem with the shifter. Possibly worn, or possibly the cable isn't seated correctly.
    Cycling weakly
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