Shimano Acera RD-M3020-SGS Rear Derailleur - 7/8 Speed, Long Cage, Black

The Shimano Acera RD-M3020 rear derailleur features Double Servo technology to provide smooth, precise shifting and helps you ride challenging terrain with fewer interruptions. Double Servo mechanism enables the rear derailleur to move in an optimum path Versatile performance and wide compatibility SGS Long cage Product Specifics Rear Der/Shifter Compatibility: Shimano Mountain Rear Derailleur Mount Type: 10x1 Standard Drivetrain Speeds: 8 Drivetrain Speeds: 7 Chain Wrap Capacity (teeth): 45 Cage Length: Long Color: Black keyword search: 3020 Today's Stock Status 10+ Available to ship in 2-4 Business Days UPC: Not available EAN: 4550170897734 Manufacturer Part Number: ERDM30208SGSL RD4111 182605-Q0-L