Promax CF2 Cranks
Best lightweight upgrade for competitive BMX racers seeking maximum stiffness.
A reliable, cold-forged aluminum crankset that balances strength and weight for everyday riding. The integrated two-piece design simplifies installation and improves stiffness, making it a straightforward upgrade for those who value durability and consistent power transfer over complex, lightweight racing tech.
$149.99
at
American Cycle
Who it's for
- BMX racers seeking a lightweight and responsive pedaling platform
- Young athletes and adults needing precise crank arm lengths
- Competitive sprinters prioritizing maximum efficiency out of the gate
Who should skip it
- Budget-conscious builders wanting to reuse existing square taper hardware
- Riders who prioritize long-term aesthetic perfection over functional performance
- Home mechanics without specialized tools or professional bike shop access
Performance breakdown
Power Transfer Efficiency
The integrated 24mm spindle design minimizes flex during hard pedaling efforts.
Build Durability
Cold-forged 6061-T6 aluminum provides exceptional strength for aggressive riding styles.
Installation Simplicity
Two-piece design and included bottom bracket make setup straightforward and quick.
Component Compatibility
Standard 104mm BCD offers wide access to various chainring options.
Weight Optimization
Sturdy construction prioritizes long-term reliability over ultra-light racing weight.
Finish Resilience
Anodized coating resists scuffs and wear from shoe rub over time.
Key Specs
Material
6061-T6 Aluminum
Bolt Circle Diameter
104mm
Spindle Diameter
24mm
Chainline
43mm
Q-Factor
167mm
Bottom Bracket Included
Yes (68mm English)
Crank Construction Type
Two-piece
Know before you buy
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Ask Metto anything about the Promax CF2 Cranks before you decide.
