Is accurate use of a hanger alignment tool dependent on a true wheel.

[fossyant]

I'd also check the mech's cage alignment as I find new SRAM MTB cages aren't all that stiff, compared say to my older Shimano ones - same issue might go for newer Shimano - i.e. all this weight saving.

 

[Salty seadog]

I'd also check the mech's cage alignment as I find new SRAM MTB cages aren't all that stiff, compared say to my older Shimano ones - same issue might go for newer Shimano - i.e. all this weight saving.

I suspect this may be the case with one sram long cage I have. As it climbs the cassette it looks to get pulled in towards the wheel more than I think it should.

 

[fossyant]

I suspect this may be the case with one sram long cage I have. As it climbs the cassette it looks to get pulled in towards the wheel more than I think it should.

They are quite bendy - I've had to realign my MTB one before now after a ding.

 

[Salty seadog]

Ok, got the Park Tools one delivered yesterday, can see it will easily pay for itself. Two bikes done today, the 901 was out after I had a little off on the trails last week. Sorted and now shifting perfectly again. The Montpellier was a little out and whilst shifting is generally fine, changing into a lower gear in the larger 4-5 sprockets requires the lever to be held for just a second with a little extra push to shift. I think this is a combination of the cassette needs changing, (will be next chain) and the possibility of the cage being slightly out of true.