Promax HF-2 Crankset
Best lightweight upgrade for competitive BMX racers seeking stiffness.
These hollow-forged arms offer an excellent balance of stiffness and weight reduction for competitive riding. The integrated spindle design ensures efficient power transfer, making it a reliable upgrade for those demanding consistent performance on the track.
$259.99
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Who it's for
- BMX racers looking to shed weight without sacrificing structural integrity
- Competitive sprinters seeking efficient energy delivery from the gate
- Growing athletes needing specific crank lengths for optimal ergonomics
Who should skip it
- Budget-conscious hobbyists who do not require elite-level racing components
- Riders with existing parts that use different mounting standards
- Aggressive street riders who prioritize extreme durability over weight savings
Performance breakdown
Power Transfer Efficiency
The 24mm spindle provides a stiff, responsive feel during explosive sprints.
Weight-to-Strength Ratio
Hollow-forged construction sheds grams without sacrificing necessary structural integrity.
Installation Complexity
Requires separate bottom bracket and chainring, adding steps to the build.
BMX Durability
Built to withstand the high-impact demands of competitive BMX racing.
Aesthetic Finish
Laser-etched graphics offer a clean, professional look on any race rig.
Component Compatibility
Standard 104mm BCD allows for easy chainring swaps and gear adjustments.
Key Specs
Material
Aluminum 6061-T6 arms, Steel spindle
Weight
791 grams
Crank Arm Length
170 mm
Bolt Circle Diameter
104 mm
Spindle Diameter
24 mm
Chainline
43 mm
Q-Factor
167 mm
Intended Use
BMX
Pedal Thread
9/16 inches
Crank Construction
2-piece hollow-forged
Know before you buy
Still have a question?
Ask Metto anything about the Promax HF-2 Crankset before you decide.
