The Shimano ACERA RD-M3020 7/8-speed rear derailleur offers excellent shifting accuracy and a wide gear range. Its Double Servo technology allows for seamless riding on difficult terrain.

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

Product features

• 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