9speed M951 Rear Mech with 8 Speed XT shifter

[Monkeeee01]

You should use a 9spd chain with the 9spd rear mech as the cage is slightly narrower and the slightly thickerer 8spd chain will rub

Slightlyerer

Does that also mean using a 9 speed cassette though?

 

[Markybeau]

Does that also mean using a 9 speed cassette though?

No. That doesn't matter

 

[Monkeeee01]

No. That doesn't matter

Ok thanks

 

[Markybeau]

I use 9 speed chains on several 7 and 8 speed cassettes with no issues.

 

[legrandefromage]

the internal dimensions of a 9/8/7 speed chains are the same, 9spd external bits are skinniererererererer