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
For use with 28 to 34 tooth low rear sprockets, total capacity
43 teeth
Shimano HG40 6,7 & 8 Speed Chain
@ £11.99p