BOX ONE OVERSIZED B52 35MM BB

Oversized Technology™
80mm shell allows wider chainstays, minimizing rear triangle deflection.

Captured bearings in the 52mm cup manage higher torque loads and ensure smooth spindle rotation.

Optimized for Box M35 spindles and cranks to maximize power delivery to the ground.

By advancing the boundaries of the BB shell to 52mm, it allows BOX to encase the bearings for improved durability. With enhanced support, bearings handle high torque with less complaints, reducing shaft wobble due to minimal internal clearance. This leads to improved power delivery, enhanced concentricity, longer service life, reduced vibration, and limited axial motion.