Jumpy Gears
whitey161
Posts: 110
Hi guys,
I have set up the gears on my new bike build. Shimano XT shifter with XT 11-36t cassette, running 1x 10. Now it changes gear fine i.e. it goes up and down the gears fine but they are a bit jumpy, they dont change particularly smoothly. What needs adjusting, is it the limits (they seem fine) or the B-tension screw.
Any tips please?
I have set up the gears on my new bike build. Shimano XT shifter with XT 11-36t cassette, running 1x 10. Now it changes gear fine i.e. it goes up and down the gears fine but they are a bit jumpy, they dont change particularly smoothly. What needs adjusting, is it the limits (they seem fine) or the B-tension screw.
Any tips please?
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Comments
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Check the mech is bolted on correctly. Cable runs smooth. Read park tools.0
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sounds like you have not set it up correctly.
is the B screw adjusted correcly?
did you set the mech up on the correct cog?
read parktools and set it up from scratch."Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
Parktools :?:SheldonBrown0 -
Is the chain old? If so then that is most likely to be the problem.
The chain and cassette should ideally be changed at the same time, as using a new chain on and old cassette (or the other way round) means that the wear levels are different, causing jumping.
If its all brand new, then it is a setup problem. There are loads of tutorils to be found on youtube and online etc, as well as this link from parktools:
http://www.parktool.com/blog/repair-hel ... derailleur
The limits should only be adjusted if the chain is not reaching the smallest sprocket or the largest sprocket. If the chain goes to those sprockets, and doesnt come off the cassette, then these are not the problem.
The barrell adjuster on your shifter could be of help. Often when the gears are working correctly but are just slightly trying to derail the chain, a bit of an adjustment to the barrelll adjuster on your shifter should stop this. Screwing out = increase tension, pulling mech towards larger sprockets. Screwing in = decrease tension, allowing mech to move towards smaller sprockets.
Ive just summed it up a bit, but it is all explained in the parktools link.0 -
If you are using a shimano chain some are directional writing need to be facing out0
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Thanks guys.
New cassette, new chain and yes its the right way round. ill re-do it using that link to the park tools tutorial. thanks alot.0
