Promax HF-2 Crankset - 170mm 24mm Spindle 2-Piece Black. HF-2 cranks are Promax’s top-of-the-line crank offering. Hollow-forged from 6061-T6 aluminum both crank arms are hollow so they are super stiff yet lightweight. The crank arms spin on a beefy 24-millimeter spindle permanently fitted into the drive-side arm.

104mm BCD

Laser-etched graphics

Bottom bracket sold separately

Pedal washers included

Chainline: 43

Q-Factor: 167

Will not fit English x 73mm bottom bracket shells