M21 Rear Derailleur - 6,7 Speed, Long Cage

M21 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
• Bracket Body: Resin / Black
• Mount Type: Direct Attachment
• Plate Body: Resin / Black
• Outer Link: Resin Steel
• Inner Link: Black Steel
• Outer Plate: Black Painted Steel
• Inner Plate: Black Painted Steel
• Weight: 279g
• Compatibility: Shimano 6 / 7 Speed MTB Rear Derailleur Compatible