Shimano RD-M3020 Acera 8 Speed SGS Rear Derailleur – Black

Shimano RD-M3020 Acera 8 Speed SGS Rear Derailleur

Key Features:

• Acera mountain bike rear derailleur with light action operation and over-size pulleys for a wide gear choice
• Oversize 13-tooth tension and guide pulleys to reduce noise and wear
• Extension spring and low-friction fluorine-coated link pivot bushing result in a light shifting action
• Top normal spring for use with Rapidfire shifters
• IG and HG chain, 7- and 8-speed compatible