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
- Number of Chainrings:Configurable Spider
- Color:Black
- Chainrings Included:No
- Pedal Spindle:9/16″
- Crank Intended Use:BMX
- Rings:Not Included
- Spindle Interface Type:RaceFace/Easton CINCH
- Crank Arm Material:Aluminum
- Crankset Style:2-Piece
- Drivetrain Speeds:Single Speed 3/32″
- Chainring BCD:104 , Direct Mount SRAM
- BB Included:No
