M21 Rear Derailleur 6,7 Speed, Short Cage Size:One Size Next to skin fit

Next to skin fit

Bright-light and low-light ChromaPop™ interchangeable lenses

general knee pain

while a newly redesigned fit helps reduce sag and excess fabric—perfect for your layering needs

Channel Construction Laid In Composite Leather

M21 Rear Derailleur 6,7 Speed, Short Cage Size:One Size Next to skin fitRear Derailleur for 1 x 6 7 Speed Direct Attachment Type Super Short Cage Max. Sprockets: 32T Total Capacity: 21T Model No.: RD M21SS Cassette Compatibility: 6 7 Speed Cage Type: Super Short Cage Front Chainring: Single Max. Sprocket: 32T Min. Sprocket: 11T Total Capacity: 21T Guide Pulley: Engineering Composite with Steel Bushing Tension Pulley: Engineering Composite with Steel Bushing Bracket Body: Resin Black Mount Type: Direct Attachment Bracket