Shimano Altus - 7.8 Speed SGS Rear Mech
Colour: black
Acera mountain bike rear derailleur featuring advanced technology for a wide gear choice
Megapulley system uses oversize 15-tooth tension pulley and 13-tooth guide pulley to reduce noise and wear
SmartCage short pulley cage offers larger gearing capacity that accommodates MegaRange super-low gear and gives good ground clearance
Extension spring and low-friction fluorine-coated link pivot bushings result in a light shifting action
IG and HG chain, 7- and 8-speed compatible
     Ref: ERDM360SGSL