ACERA RD-M3020 7/8-speed Rear Derailleur
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.
Pulley cage
- Type-SGS long
Material
- Aluminum
- Steel
Color
- Black
Technology
Double Servo
SHIMANO’s double servo-panta mechanism enables the rear derailleur to move in an optimum path. The guide pulley tracks the cogs closely while moving front to back, optimizing each shift. Perfect tracking contributes to the most accurate SIS shifting. Keeps rear derailleur guide pulley an optimum distance from each sprocket. Keeps rear derailleur guide pulley an optimum distance from each sprocket.
SHIMANO RD-M3020 ACERA REAR DERAILLEUR - 7/8 SPEED
- 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
- Use: MTB, Trekking
- Group: ACERA M3000
- Model: RD-M3020-8
- Mount Type: Direct Mount
- Technology: Top Normal
- Gear: 7/8-speed
- Compatible Chain: HG 7/8-speed
- Max. teeth large sprocket: 40T
- Min. teeth large sprocket: 30T
- Max. teeth small sprocket: 12T
- Min. teeth small sprocket: 11T
- Max. Front Difference: 20T
- Total Capacity: 45T