Double Servo rear derailleur with smooth, precise shifting performance and wide-range capability.
The SHIMANO ACERA M3020-8 rear derailleur with Double Servo technology helps you ride challenging terrain with fewer interruptions.
Specfication:
- Double Servo construction for smooth and precise shifting
- Versatile performance and wide compatibility
- Max. low sprocket: 40T
- Total capacity: 45T
***These are OEM Shimano Parts, Brand new, Never Installed on Bike, Never used in any way, just NOT in retail packaging.***
