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phantom shifting
 

[Closed] phantom shifting

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[#1084569]

It's driving me mad on my roadrat. There are no problems at all when I am sitting but as soon as I am out of the saddle the gears are all over the place. I am running 1x9 with a 50 tooth compact single chainring at the front and an XT shifter and cassette at the rear. I think there may be some problems with excessive cross over, but it happens all over the cassette and makes riding in the woods a nightmare.
Any ideas?


 
Posted : 29/11/2009 6:16 pm
 Olly
Posts: 5273
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indexing is out.

cables may be a bit sticky?

cross over certainly wont help


 
Posted : 29/11/2009 6:32 pm
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try full length gear outers ...on some bikes (eg my old nrs) frame flex can cause the problem. A full length outer sorted mine.


 
Posted : 29/11/2009 6:43 pm
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I never seem to have a problem with phantom shifting despite putting my 105kg lump on an NRS and mashing the pedals?


 
Posted : 06/12/2009 9:48 pm
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worn chain and cassette first option after indexing not quite being spot on. I too found the easiest way of sorting it is running full legnth outer.


 
Posted : 06/12/2009 9:51 pm
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To be honest as soon as I get problems like that I'll change the cassette and chain, look at the chainrings and change the geat cable too. I can't stand bikes not doing what they're meant to do quietly and well!!


 
Posted : 06/12/2009 9:57 pm