Shimano XT Left Crank Arm - Spindle Interface Type: Hollowtech II

- Series: SLX - Crank Construction: HOLLOWTECH II Technology

- Crank Construction : HOLLOWTECH II - Optimum power transfer

- Octalink bolts include steel washers, JIS includes black plastic caps - HT2 mount bolts (low torque plastic, except XTR-M970 aluminum) are for mounting non-drive arm - Hollow bolts (SH-21504) not recommended for non-treated spindles

- XT M8130 12 speed crankset - Fits 157mm SuperBoost MTB frames - Hollow forged crank maximizes power transfer while limiting weight - Direct mount chainring type (TL-FC41 tool included) - Q-factor: 181mm - Chainline: 56.5mm

- BCD: Direct Mount Shimano - Chainline: 55mm - Crank Arm Length: 170mm - Material: Aluminum - Interface: Hollowtech II - Speed: 11/12 - Crank Spindle Diameter: 24mm - Drivetrain Spacing: SuperBoost+ - Pedals Thread: 9/16''