The Box Four Race Cranks feature a 2-piece design paired with an oversized bottom bracket interface.

For durability and easy installation the 24mm spindle is pressed into the drive-side crank arm while the non-drive side crank arm features a 2 bolt pinch system for imcreased strength.

Box's unique 4 bolt 104 BCD spider features a flex-resistant ring optimum performance. These cranks feature steel pedal inserts that require pedal washers and external sealed bearing BSA bottom brackets. both are provided in the box.

###section###

Product Specs

1. Crank Type: 2-Piece
2. Drive Type: Bolt Drive
3. Spindle Diameter: 24mm
4. Drive Side: Right Side Drive
5. Includes BB Bearings: No
6. Weight: 900g (31.7oz)