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.

Weight Limit: 115kg (253 lbs) with limitationsas per Category 2 of EN 16054:2012 Standard

160mm 165mm 170mm
BB (Included): BSA 1.37
Spindle: 24mm Chromoly
Material: 6061 T-6 Aluminum
Process: Cold-Forged
Chainline: 44.5mm
Torque specs: 12-14 nM
Weight: 900 grams / 31.7 ounces, 900 grams / 31.7 ounces, 900 grams / 31.7 ounces