SRAM XX1 Rear Derailleur - 11 Speed Medium Cage Black/Red Bottom Bracket Parts Forced Air cooling technology for

Forced Air cooling technology for a clever ventilation system and optimal head temperature

Ultrasonic cleaning is a process that uses ultrasound to agitate the fluid the process ensures a deep clean to the surface in ready for lubrication

Utilizing a simple-yet-effective design that allows for one-handed operation the CP-1

Vision Nano Optics Photochromic is equipped with a photochromic lens that automatically adjusts the darkness of the lens to the strength of the sunlight (UV light)

SRAM XX1 Rear Derailleur - 11 Speed Medium Cage Black/Red Bottom Bracket Parts Forced Air cooling technology forSRAM XX1 Rear Derailleur 11 Speed Medium Cage Black Red. Professional grade derailleur built with carbon fiber and aluminum featuring roller clutch pulley cage and cage lock feature for easy wheel installation. Wide tooth narrow tooth pulley wheel maximizes chain control by fitting inner and outer chain links perfectly X Horizon design maintains constant chain gap across all gears and eliminates ghost shifting Roller bearing clutch eliminates