Sram X9 ESP Rear Derailleur
Product Description
Redesigned X.O-style links and polished cosmetic finish
Compatible with ESP (1:1 ratio) trigger and twist shifters. Not Shimano compatible.
Di.R.T (Direct Route Technology) for light-effort shifting performance
Aluminum inner/outer links and B-knuckle with Grilon P-knuckle
Aluminum cage on medium/long and composite cage on short version
Hardened pivots and 11-tooth upper/lower pulleys
210g/225g/230g