Shimano Rear Derailleur Acera 

• 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

• For use with 28 to 34 tooth low rear sprockets, total capacity 43 teeth

 Our Price £29