SRAM XX1 Rear Derailleur - 11 Speed Medium Cage Black/Red ModelNumber=K1381 Optimized side-load shape for easy

Optimized side-load shape for easy bottle access in compact frames

7 External Adjustments Lockout Threshold Positive Spring Air Eye to eye length (mm) 210 keyword search RockShox Model Year 25

Featuring cleaner sponges brushes and our eBike specific lubes that have been beefed up to take on the extra power from an electric motor you’ll be in safe hands to shred hard

Intended use: loose loose over hard medium wet Flat Protection Sidewall TPI 60 Color Black Weight 1034 Defined Color Black ISO Width (mm) 71 ISO Diameter 584 / 650b / 27

SRAM XX1 Rear Derailleur - 11 Speed Medium Cage Black/Red ModelNumber=K1381 Optimized side-load shape for easyProfessional 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 derailleur bounce and chain slap Cage Lock feature simplifies