Interesting. The early Stx where still on 7sp, only later did it go 8sp. And the 7 must have been wider as I remember having trouble trying the modify an 8sp version with the older parts. They where both the same tooth count of course. Would need to check if 'narrow' was on them. I wounded if you actually where given a 7sp version?was8v":3mkuqvnj said:Yes the M900 had the "sealed ceramic bush" jobs, not really worth paying extra for....
Well It seems the M900 wheels should be narrower than STX/Alivio replacement 8spd jockey wheels. M900 are the same width as 9spd jockey wheels, but with 10 rather than 11 teeth.
I'm now sorted after tracking down narrow 10t wheels.