M21 Rear Derailleur - 6,7 Speed, Long Cage Hard Sided Contains 20 bursts with a

Contains 20 bursts with a spray range of 12 feet

Double up on hydration with an insulated Crux reservoir sleeve that adds 3 liters of extra water to any pack

Isolates the legs to build leg strength

Impact Management: Integrated MIPS

Pinhead locks are unmatched in quality

M21 Rear Derailleur - 6,7 Speed, Long Cage Hard Sided Contains 20 bursts with aM21 rear derailleurs are designed to work with 6 and 7 speed Shimano road and mountain shifters. Enjoy the wide variety of bikes you can get going again with M21 rear derailleurs. Model No.: RD M21L Cassette Compatibility: 6 7 Speed Cage Type: Long Cage Front Chainring: Double Triple Max. Sprocket: 32T Min. Sprocket: 11T Total Capacity: 43T Guide Pulley: Engineering Composite with Steel Bushing Tension Pulley: Engineering Composite with Steel Bushing