Replacing the whole drivetrain once the winter grime has subsided. Cranks are being upgraded to SLX and got a SRAM 970 rear cassette and chain to go on.
Ive got a XT rear mech currently so the jockey wheels will need replacing as they are pretty worn or I am debating just replacing the rear mech with a new shadow SLX rear mech. The XT mech is about 5 years old.
Are the SLX ones any good ir would I be better sticking with the XT?

