Dura Ace 9000 - buzzing noise under load

dstev55
dstev55 Posts: 742
edited April 2017 in Road general
My bikes just been in to my LBS for a bit of a service ready for the many miles it's going to do over summer. They obviously tweaked all the gears to ensure they're as smooth as possible. Now the shifting is near on perfect, however when I'm in my 3rd and 4th smallest cog on the rear I get a rather annoying buzzing noise (almost like a rattle but sounds like a buzzing noise when moving). The more power I put through the more prominent it becomes. If I shift higher or lower it goes, which rules out derailleur rub (I think). I can and probably will take it back to my LBS but I thought I'd try here first in case it's something I can sort.

Comments

  • vrsmatt
    vrsmatt Posts: 160
    Jockey Wheel on casette? B Tension screw?
    Giant TCR Composite 1, Giant Defy Advanced 2, Boardman Comp, Santa Cruz Heckler, Raleigh M-Trax Ti, Strida LT, Giant Halfway
  • alanparsons
    alanparsons Posts: 529
    Take it back to the shop, DA9000 shifting should be perfect (near on perfect=not right).
    Jockey wheels are an often overlooked wear and tear item, might be worth changing them anyway.

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