Box One Oversized Bottom Bracket (bb52) (35mm)

Built for maximum power transfer, the Box One Oversized BB52 Bottom Bracket redefines how your drivetrain connects to the frame. With a wider shell and larger spindle interface, this setup delivers increased stiffness, smoother rotation, and more efficient energy transfer when you’re pushing hard out of the gate or through the turns.

Product Highlights

• Oversized design for increased stiffness and power transfer
• 80mm shell width supports wider chainstays and improved rear-end stability
• Captured bearing system for smooth rotation under high load
• Reduces flex, vibration, and internal movement
• Optimized for Box M35 crank and spindle system

Specifications

• Type: BMX bottom bracket
• Axle Length / Size Compatibility: 80mm BB shell
• Axle Diameter Compatibility: 35mm spindle
• Material: Aluminum cups with sealed bearings
• Frame Compatibility: 52mm bottom bracket shell
• Weight: 110g