Am I able to use the non di2 xtr rear mech in a 10 speed setup? Can’t see why not myself, but if any one knows otherwise I’d appreciate your thoughts.

Believe in possible my friend….believe in possible.

rather than posting cryptic shit, the answer, by letter of the law according to Mr Shimano is no. But someone, possibly him ^^ tried it and said it worked. So maybe.

Yes it works without modification – I actually posted this on Saturday.

http://singletrackworld.com/forum/topic/shimano-xtr-m9000-rear-derailleur-on-1×10-setup

Any one else know?

Apologies theprof, that came over as a bit ungrateful. Think we must have posted at the same time. Appreciate the post, thanks.

No offence taken, just happy to help!