Box Bottom bracket One B52

Traditional bottom brackets don't provide the space needed for the pedalling stiffness you deserve. That's why BOX has designed the B52 bottom bracket to integrate oversized technology into your bike frame, breaking the mould in the world of bike builders. With a BB shell of 52 mm x 80 mm wide, your bike benefits from wider stays, improving efficiency in turns and accelerations. Your power output becomes more effective, and the feedback becomes more responsive. In short, you'll need less energy to achieve the same elapsed time. Gather as many oversized components as possible to eliminate flexibility from your setup.

• Oversized Technology™
• For 35mm diameter axle only.
• 52 mm shell allows for wider stays, minimising rear triangle deflection.
• Bearings captured in the 52 mm shell handle higher torque loads and ensure smooth spindle rotation.
• Optimised for Box M35 crank arms to maximise power transfer to the ground.

COMPATIBILITY:
For frames with Oversized B52 bottom brackets only.

• Race Inc
• Syndyt