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.
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