Shimano Acera RD-M3020-SGS Rear Derailleur - 7/8 Speed Long Cage Black MFPN=00.4021.277.007 41 - 86 °F /

41 - 86 °F / 5-30 °C

Bolt-in torque cap adapters now included for the use with standard hub end caps

Soft: better grip than the Mid compound

2P or TS-2

You can set up wheel size in our Garmin Connect online community or self-calibrate with an Edge cycling computer or compatible Garmin device

Shimano Acera RD-M3020-SGS Rear Derailleur - 7/8 Speed Long Cage Black MFPN=00.4021.277.007 41 - 86 °F /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 Rear Der Shifter Compatibility Shimano Mountain Rear Derailleur Mount Type 10x1 Standard Drivetrain Speeds 7 Chain Wrap Capacity (teeth) 45