Promax HF-3 Hollow Hot Forged Crankset - 172.5mm 2-PC Direct Mount SRAM 3-Bolt 30mm Spindle BLK

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	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
Size	172.5Mm