RD-M3020-8
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.

FEATURES
Double Servo construction for smooth and precise shifting
Versatile performance and wide compatibility
Max. low sprocket: 40T
Total capacity: 45T

PRODUCT SPECIFICATIONS
MODEL NO RD-M3020-8
SERIES ACERA M3020 Series
Color Black
Rear speeds 8/7
Compatible chain HG 8/7/6-speed
Top-Normal spring type|Double servo ✔
Mount|Direct attachment (Conventional) ✔
Cable adjuster ✔
Max. front difference 20T
Total capacity 45T
Low sprocket|Max. 40T
Low sprocket|Min. 30T
Top sprocket|Max. 12T
Top sprocket|Min. 11T
Fluoric coated link bushings 1
Pulley|Teeth 11T
Pulley|Sunken type pulley bolt ✔