The 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.

• With a 104-millimeter BCD four-bolt spider
• Chainline: 43
• Q-Factor: 167
• Promax do not recommend the use of spacers with Promax cranks when used on BMX or other frames with a standard 68mm wide BB shell