Results 1 to 3 of 3
  1. #1
    mtbr member
    Reputation: rzims's Avatar
    Join Date
    Sep 2005
    Posts
    1,024

    front der shifting issues

    Hey all,
    So, I'm building up my first geared bike and am having issues setting up the front der.
    I followed the park tools website and it shifts from the small to the middle to the large just fine.
    The problem is when I downshift from the large, it completely skips the middle ring and drops to the small ring....

    Any suggestions (other than just keep riding my SS)

    Thanks in advance
    -Rich

  2. #2
    mtbr member
    Reputation:
    Join Date
    Apr 2009
    Posts
    2,335
    I assume you are using some form of trigger shifters, and you click 1 gear down from the large when the problem occurs.
    all I can think of quickly is that the derailleur is sitting more toward the inside in its range of travel (closer to the frame). Check when in the middle and the lowest cog at the back, the derailleur should sitting as far out as it can - ie it should be virtually brushing the chain. If not then increase cable tension until this happens.

    edit - also check that the derailleur is running parallel with the chainrings
    Rimmer - "There's an old human saying - if you talk garbage, expect pain"

  3. #3
    mtbr member
    Reputation: rzims's Avatar
    Join Date
    Sep 2005
    Posts
    1,024
    Thanks - I'll check that out. I did check that it's parallel...

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •