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

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 Materia