Shimano Acera RD-M3020-SGS Rear Derailleur - 7/8 Speed Long Cage Black MFPN=00.4021.277.007 Synthetic leather in the palm

Synthetic leather in the palm and form-tailored construction for increased comfort

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

Soft: better grip than the Mid compound

A precision CNC-machined aluminum tool for the installation and removal of select threaded bottom brackets with 12-notch tool fittings including SRAM BSA DUB Race Face Cinch Rotor BSA30 and others

Shimano Acera RD-M3020-SGS Rear Derailleur - 7/8 Speed Long Cage Black MFPN=00.4021.277.007 Synthetic leather in the palmThe 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