Designed for BMX racers seeking a reliable and affordable 2-piece crankset, the Box Four features a robust 24mm chromoly spindle, cold-forged 6061-T6 aluminum arms, and a user-friendly installation with a large bottom bracket interface. Built with steel pedal inserts and a dual pinch bolt system for added strength and security.
Product Highlights
- 2-piece design with integrated 24mm chromoly spindle pressed into the drive-side arm for optimal stiffness
- Cold-forged 6061-T6 aluminum arms ensure a strong, lightweight construction
- Dual pinch bolts evenly distribute clamping force and reduce crank arm stress
- Steel pedal inserts provide added durability for aggressive starts and sprints
- Includes threaded BSA bottom bracket for hassle-free installation
Specifications
- Material: 6061-T6 Aluminum
- Spindle: 24mm Chromoly
- Lengths: 160mm, 165mm, 170mm
- Bolt Circle Diameter (BCD): 104mm (4-bolt)
- Chain Compatibility: 3/32"
- Crankset Style: 2-piece
- Bottom Bracket: BSA 1.37 (included)
- Chainline: 44.5mm
- Drive Side: Right side only
- Color: Black
- Weight: 900g
