The Shimano ACERA RD-M3020 7/8-speed rear derailleur provides smooth and precise shifting performance and a wide-range capability. The SHIMANO ACERA M3020-8 rear derailleur with Double Servo technology helps you ride challenging terrain with fewer interruptions.
FEATURES – SHIMANO ACERA RD-M3020-8
- Double Servo construction for smooth and precise shifting
- Versatile performance and wide compatibility
- Quick assembly
- Allen key type inner cable fixing bolt
- Max. large sprocket: 40T
- Total capacity: 45T