I am upgrading and wondering if a 12 sp XT derailleur can be use with an 11 sp cassette? 11-46 cassette with a 32 chainring up front. 1x11 on a Turbo Levo
Everything I have read about this indicates that it will work fine. The cable pull to derailleur index ratio for Shimano mtb 10 through 12 speed stuff makes them generally compatable as far as indexing goes.
There will be those who say Nay! But I use the same information as above to run an 11 speed derailleur on my 10 speed system, and it's perfect.
11 to 46 range should be no stretch at all for a 12 speed derailleur.
There are two, be sure to get the one you want, 1x or 2x