Description
HF-3 cranks are Promax’s top-of-the-line aluminum 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 30mm spindle permanently fitted into the drive-side arm. These cranks offer direct-mount sprocket compatibility for additional weight savings, or run them with the included 104 BCD spider adapter.
- CNC machined 6061-T6 aluminum crank arms are lightweight, strong, and stiff
- Designed and optimized for chainrings and spiders with SRAM’s 3-Bolt mount style
- Includes 4-bolt, 104 BCD spider/adapter (Not compatible with CK-1 crank spider/adapter)
- 30mm spindle provides increased stiffness and efficient power transfer
- Pedal washers included and required
- Bottom bracket sold separately
| Rings | Not Included |
| Number of Chainrings | Configurable Spider |
| Drivetrain Speeds | Single Speed 3/32″ |
| Chainring BCD | 104 |
| Chainring BCD | Direct Mount SRAM |
| Chainrings Included | No |
| Color | Black |
| Crankset Style | 2-Piece |
| Crank Length (mm) | 172.5 |
| Crank Intended Use | BMX |
| Pedal Spindle | 9/16″ |
| BB Included | No |
| Crank Arm Material | Aluminum |
| Spindle Interface Type | RaceFace/Easton CINCH |
| Defined Color | Black |
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