Shimano Deore M591 9 Speed Rear Mech
High-performance components for serious cycling fun. Deore is designed to appeal to a wide range of cycling fans.
The Deore M591 rear derailleurs wide link design increases its rigidity and service life and its "top normal" return spring lends to incredibly intuitive operation when combined with Rapidfire shifters. Alloy and steel construction leads to lower weight without compromising strength and durability.