Box One B52 Bottom Bracket

We couldn't ignore the undeniable truth about bottom brackets. Traditional BBs lack the space necessary for the pedal stiffness you deserve. That's why we designed the B52 Bottom Bracket to bring Oversized Technology into your bike frame, breaking the mold in the bike builder's world. With a 52mm x 80mm wide BB shell, your bike gains wider chainstays, enhancing efficiency during cornering and acceleration. Your power delivery becomes more efficient, and feedback becomes more responsive. In summary, you'll need less energy to achieve the same elapsed time. String together as many Oversized components as you can to banish flex from your setup.


Key differences: By advancing the boundaries of the BB shell to 52mm, we can encase the bearings for improved durability. With enhanced support, bearings handle high torque with fewer 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.

Features

  • Oversized Technology™
  • 80mm shell allows wider chainstays, minimising rear triangle deflection.
  • Captured bearings in the 52mm cup manage higher torque loads and ensure smooth spindle rotation.
  • Optimised for Box M35 spindles and cranks to maximise power delivery to the ground.
Box One B52 Bottom Bracket
Box One B52 Bottom Bracket
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To find out where to buy  Click Here

Description Colour Size Wt(g) Part No. Stock Lvl Unit RRP Pack Qty
ONE B52 BB Set, B52 Type for 35mm CranksGoldB52 BBBX1B52K
ETA: 10th Apr 2025
£99.99Each 
  • Good stock levels
  • Low stock levels, Qtys may not be available
  • +24h Components are available, add 24/48hrs for assembly
  • Special Order Currently non-stock item, contact us for info
  • Out of stock. Expected availability date will be displayed if known.
  • Discontinued. This product is no longer available.
  • M Mixed Quantity discount available
Description Colour Size Wt(g) Part No. Stock Lvl Unit RRP Pack Qty
ONE B52 BB Set, B52 Type for 35mm CranksGoldB52 BBBX1B52K
ETA: 10th Apr 2025
£99.99Each 
  • Good stock levels
  • Low stock levels, Qtys may not be available
  • +24h Components are available, add 24/48hrs for assembly
  • Special Order Currently non-stock item, contact us for info
  • Out of stock. Expected availability date will be displayed if known.
  • Discontinued. This product is no longer available.
  • M Mixed Quantity discount available