RD-M3020 Acera rear derailleur SGS black 8 speed

Latest Generation of Acera Rear Derailleur Compatible with 7/8-speed systems, providing improved gear shifting for mountain bikes especially over the slighly heavier Altus RD310.

• 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

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