Box Components
Four Cold Forged BMX Cranks

The Box Four Crankset features a 2-piece design with an oversized bottom bracket interface. The 24mm spindle is pressed into the drive-side crank arm for durability and easy installation. The non-drive side crank arm features a 2-bolt pinch system for added strength. Our unique 4-bolt 104 BCD spider features a flex-resistant ring for optimum performance.

Box Four Cranks feature steel pedal inserts that require pedal washers and external sealed bearing BSA bottom brackets, and both are provided in the box.

Features:

• Oversized Bottom Bracket Interface
• Dual Pinch Bolts for Even Clamping Force
• Spider with Flex-Resistant Ring

Specification:

Material:
• Arms: 6061-T6 Aluminum
• Spindle: Chromoly Steel
Process:
• Arms: Cold-Forged & CNC
• Spindle: CNC Turned
Finish: Anodized w/Laser-Etched Graphics
Chainline: 44.5mm
Q Factor: 168mm
Spindle: 24mm Included
Bottom Bracket: BSA 1.37 Included
Torque Specs: 12-14 Nm
Compatibility:
• Chainring: 4-bolt 104 BCD
Size & Weight:
• 160mm / 900 g / 31.7 oz
• 165mm / 900 g / 31.7 oz
• 170mm / 900 g / 31.7 oz