Shimano Deore RD-M531 Rear Derailleur - 9-Speed

Need precise shifting in varied terrain? Look no further than this Shimano Deore rear derailleur. Suppressed flexing creates sharp, precise shifts that are fast and smooth, even from low to high gears while riding off the saddle. Alloy construction reduces weight while maintaining durability. Eleven-tooth pulleys run quiet and wear long due to alternating tooth contact between inner and outer chain plates. Two fluorine-coated link pivot pins reduce friction for light, precise shifting action. Wide pivot link boosts strength and rigidity. 8- and 9- speed compatible.