BOX

Four Crankset with Bottom Bracket

BOX Four Crankset with Bottom Bracket delivers solid performance and reliability for BMX riders who push their bikes to the limit. Built with strength and precision in mind, this crankset combines durable materials with clean design to keep your power transfer smooth and your setup simple.

With a cold-forged 6061-T6 aluminum body and a 24mm chromoly spindle, it’s engineered for stiffness and long life—ideal for riders who demand a tough setup that won’t flex under pressure. The 4-bolt 104 BCD spider makes chainring swaps quick and straightforward, while dual pinch bolts ensure even clamping and a secure fit every time. An included external 68mm BSA bottom bracket rounds out the package for smooth, ready-to-ride performance.

• Cold-forged 6061-T6 aluminum arms for strength and durability
• 24mm CrMo spindle provides excellent stiffness and power transfer
• 4-bolt 104 BCD spider for easy chainring customization
• Dual pinch bolts offer balanced, secure clamping
• External 68mm BSA bottom bracket included for a complete setup
• Laser-etched graphics for a clean, professional finish

Whether building a new bike or upgrading an existing rig, the BOX Four Crankset with Bottom Bracket delivers dependable power and a clean look that’s ready for the track or the street.