HF-2 cranks are Promax’s top-of-the-line 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 24-millimeter spindle permanently fitted into the drive-side arm.104mm BCD. Laser-etched graphics. Bottom bracket sold separately. Pedal washers included. Chainline: 43. Q-Factor: 167. Will not fit English x 73mm bottom bracket shells. Item Specifications: Color, Black, Crankset Style, 2-Piece, Crank Length (mm), 175, Crank Intended Use, BMX, Weight, 836, Drive Side Compatibility, Right Hand Drive, Pedal Spindle, 9/16″, BB Included, No, Weight (oz), 29.5, Crank Arm Material, Aluminum, Chainring BCD, 104, Chainrings Included, No, Spindle Material, Steel, Defined Color, Black, Bore, 24, SHIPS TODAY! Order before 1:30PM EST, M – F, and this item ships the same day! HAVE A QUESTION?Expert customer service by bike experts! A Real Brick And Mortar Retail Bicycle Shop with people you can talk to! Contact Us! (9-5 Mon-Fri, 12-4 Sat & Sun EST) Chat With Us