XT RD M771 compatiblity

[joe careless]

Though listed as 9 speed will it push to 10spd? Also XTM771 as group any cop?
I have new build on its way, have a rear derailleur on shelf, will use my XT thumbies ( never get on with anything else) so will be potentially looking for other stuff plus flogging spare stuff

 

[captainchrisstc]

No. 9 speed, and 10 speed is not compatable, as they have different actiation ratios.

 

[captainchrisstc]

This might help you with them. 2nd chart down, has the ratio's listed. Under derailleur ratio.
http://blog.artscyclery.com/science-beh ... atibility/

 

[ishaw]

Assuming you'll be using your thumbies in friction mode, then yes it will.work with a 10 speed cassette. It's a nice groupset, looks good and works well.

 

[joe careless]

Thought so, having had it on a tourer it handled 8spd well. Thumbies are best