Shimano Fc-m770 Xt 180 44/32/22t 9-speed W/ Bb

To create the XT HollowTech II Crankset, Shimano incorporated the crank arms and bottom bracket into a single unit to give you increased rigidity while dropping weight. Plus, Shimano hollowed out the forged crank arms to further decrease weight without compromising the strength of this crankset for your all-terrain mountain bike. The carbon-steel composite middle ring sandwiched between aluminum inner and outer chainrings adds to the life of your XT Crankset and increases rigidity for improved shifting and power.

44 tooth outer ring, 32 tooth middle ring, 22 tooth inner ring
Hollow forged crank arms are stiff and light
Composite middle ring for extra durability and smoother shifting
Includes bottom bracket
Compatible with 9 speed chain