The
Shimano Deore M591 crankset serves as both an upgrade for bikes with Shimano's sport mountain 3x9 groups or as a trail ready replacement for bike with worn drivetrain.
Deore M591 cranks use Shimano''s Hyperdrive SG-X chainrings for smooth, reliable shifts and are compatible with all 9-speed drivetrains.
Shimano Deore M591 cranks use Shimano''s HollowTech II bottom bracket interface which improves stiffness and reduces weight over older cartridge style bottom brackets and is the same technology used on Shimano''s high end XT and XTR groups. Shimano does include a HollowTech II bottom bracket that should fit most mountain bikes with a 68mm or 73mm English threaded bottom bracket. To install the bottom bracket, you will need a
Park Tool BBT-9.
- Compatible with all 3x9 mountain drivetrains
- Hyperdrive SG-X chainrings 22/32/44t
- Includes HollowTech II bottom bracket