Sram X0 Carbon Cage Rear Derailleur

This is an 8 or 9 speed rear derailleur that is compatible with SRAM 1:1 shifters (triggers and twisters).
It has a 1:1 actuation ratio & Direct Route Technology for lighter effort shifting.
It also has forged alloy links and B-knuckle, a high strength Grilon P-knuckle, machined and heat treated oversize pivot pins, sealed cartridge bearing pulleys and carbon fibre cages.
Weight: 197g Medium / 192g Short.