Derailleur set up help - XT
Mccraque
Posts: 819
Morning!
fitted a shimano long cage rear mech yesterday as I destroyed my old on with a rock strike at the weekend. Everything seems to function as expected when on the bike stand. Shifting is crisp and accurate.
However, moving to a real world environment where there's a little pressure on the peddles, and shifting seems a lot more problematic. Lots of rattling before shifting, and twanging when it does go.
What have I done wrong? Any tips? I've tried the barrel adjusters. Is there something I am missing?
fitted a shimano long cage rear mech yesterday as I destroyed my old on with a rock strike at the weekend. Everything seems to function as expected when on the bike stand. Shifting is crisp and accurate.
However, moving to a real world environment where there's a little pressure on the peddles, and shifting seems a lot more problematic. Lots of rattling before shifting, and twanging when it does go.
What have I done wrong? Any tips? I've tried the barrel adjusters. Is there something I am missing?
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Comments
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Sounds like indexing is not quite right or B screw adjustment or bent mech hanger.
Start again.I don't do smileys.
There is no secret ingredient - Kung Fu Panda
London Calling on Facebook
Parktools0 -
Just a guess - check how close the jockey wheels get to the cassette. Being too close or too far away can affect the quality of the shifts, and can lead to a bit of noise. The preferred distance is in the instructions somewhere.Specialized Roubaix Elite 2015
XM-057 rigid 29er0 -
Jockey teeth 2mm from largest sprocket teeth I seem to recall....Currently riding a Whyte T130C, X0 drivetrain, Magura Trail brakes converted to mixed wheel size (homebuilt wheels) with 140mm Fox 34 Rhythm and RP23 suspension. 12.2Kg.0
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Which would be B screw adjustment.I don't do smileys.
There is no secret ingredient - Kung Fu Panda
London Calling on Facebook
Parktools0 -
i found this very helpful http://www.youtube.com/watch?v=SjJfKO_t ... AL&index=2I am sorry if I talk to much s@#t it goes with the name.............0
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what bike? what else have you changed?Mccraque wrote:Morning!
fitted a shimano long cage rear mech yesterday as I destroyed my old on with a rock strike at the weekend. Everything seems to function as expected when on the bike stand. Shifting is crisp and accurate.
However, moving to a real world environment where there's a little pressure on the peddles, and shifting seems a lot more problematic. Lots of rattling before shifting, and twanging when it does go.
What have I done wrong? Any tips? I've tried the barrel adjusters. Is there something I am missing?"Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
Parktools :?:SheldonBrown0 -
i normally set the gears in the stand then tweak them when i test ride it as often seems to be slightly different when you ride it0
