What xtr mechs do 7 speed?? Think i have messed up

[rojo]

Think i have messed up, The wife's explosif has 7 speed wheels and cassette and gripshifts. I have xtr m900 chainset, and got xtr m952 rear mech, and xtr m952 or maybe its a m950. Is this going to work or have i messed up

 

[mikeekim89]

my 952 rear did 7 speed, but it took alot of fiddling with cables and screws

 

[Tad]

Take your time setting it up and it'll work.

 

[rojo]

This will be my first ever build :shock: :shock: :shock: :shock:

 

[FluffyChicken]

XTR started at 8 speed, but don't worry. As long as the shifter are 7 speed then the mech will follow it's index points.
BUT use and 8 speed chain on it.

 

[rojo]

XTR started at 8 speed, but don't worry. As long as the shifter are 7 speed then the mech will follow it's index points.
BUT use and 8 speed chain on it.

Cool so defo need a 8 speed chain??

 

[mikeekim89]

Yeah, a 7 is too wide

 

[rojo]

How that work??? i haven't a clue

 

[mikeekim89]

Right, a 7speed chain, is wider than a 8-9 as the casette rings are thicker, and it'd make the hubs wider, which the makers can't do, as most bikes are a 130-135mm rear dropout width (i think..) and if the 8-10 speed casettes we're all the thickness of the 7, then they would be wider, thus unable too fit the frame unless it's bent out, which ruins the frame, and viods all new frames warranties. and as top level now is carbon, it's like bending reallly thin plastic alternately.. i could be talking crap. but someone will say soon

 

[mikeekim89]

P.S. xtr m950 uses thinner jockey wheels which means a thinner cage. and the chain'll hit the chain walls