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Promax HF-2 Cranks

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, they come in a variety of beautiful anodized finishes.

Available in anodized red, blue, gold and black with laser-etched graphics in 170, 175 and 180 millimeter lengths. Bottom bracket sold separately. Meets or exceeds ENBMX standards.


  • 170: 768 grams/27.09 ounces
  • 175: 789 grams/27.83 ounces
  • 180: 793 grams/27.97 ounces