Promax HF-3 Hollow Hot Forged Crankset – 172.5mm 2-PC Direct Mount SRAM 3-Bolt 30mm Spindle Black. HF-3 cranks are Promaxs 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 SRAMs 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
| Color |
Black |
| Rings |
Not Included |
| Number of Chainrings |
Configurable Spider |
| Crankset Style |
2-Piece |
| Crank Length (mm) |
172.5 |
| Crank Intended Use |
BMX |
| Drivetrain Speeds |
Single Speed 3/32″ |
| Pedal Spindle |
9/16″ |
| BB Included |
No |
| Crank Arm Material |
Aluminum |
| Spindle Interface Type |
RaceFace/Easton CINCH |
| Chainring BCD |
104 |
| Chainring BCD |
Direct Mount SRAM |
| Chainrings Included |
No |
| Defined Color |
Black |
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