The HF-3 cranks are Promax's premium aluminum crank offering. Forged from 6061-T6 aluminum, both crank arms are hollow, making them ultra-stiff and lightweight.
The crank arms rotate on a robust 30mm axle permanently installed in the drive-side arm. These cranks offer compatibility with direct-mount sprockets for additional weight savings, or use them with the included 104 BCD spider adapter.
FEATURES :
- The CNC-machined 6061-T6 aluminum cranks are lightweight, strong, and rigid.
- Designed and optimized for chainrings and spiders with SRAM's 3-bolt mounting style
- Includes a 4-bolt spider/adapter, 104 BCD (not compatible with the CK-1 crank spider/adapter)
- The 30mm axle offers increased rigidity and efficient power transfer
- Pedal washers included and required
- Lower bracket sold separately
COMPATIBILITY:
- Euro BSC/BSA bottom bracket shells with 30mm axle
- Adapters compatible with 30mm axle Press Fit bottom brackets sold separately
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Questions fréquentes
What crank length should I choose for BMX Race?
Length depends on the rider's height: roughly 145-165 mm for youngsters (Mini/Expert) and 170-180 mm for adults (Pro). A three-piece chromoly or alloy crankset is the norm.
American, mid or euro bottom bracket: what's the difference?
These are the bottom-bracket standards. The standard must match your frame: check it before buying a crankset or a replacement bottom bracket.
Is shipping free?
Yes: shipping is free within mainland France from €99 of purchase. Below that, the cost is shown at checkout according to weight and the chosen shipping method.
Can I pay in instalments?
Absolutely. You can pay for your purchases in 2 or 3 instalments with Alma, completely securely. The option appears automatically at checkout.
How long do I have to return an item?
You have 14 days after delivery to change your mind. The item must be new, unfitted and in its original packaging to be returned or exchanged.
Do you deliver to the French overseas territories (DOM-TOM)?
Yes, we also ship to the French overseas territories (DOM-TOM). Times and costs depend on the destination and parcel weight; the exact amount is calculated and shown before you confirm your order.