Box Two BB Set 24mm Black

Box Two™ 24mm External bottom brackets feature cold-forged, CNC-machined alloy cups, dual-labyrinth bearing covers, and precision-sealed bearings. They are the perfect match to Box Three™ and Four ™ cranks, and the ultimate upgrade to the budget BBs sold with most cranksets.

Box Two™, 24mm External Bottom Brackets, are designed to fit all 24-millimetre crank spindles and frames with 68 or 73 x BC 1.37-inch BSA threaded bottom bracket shells.

  • Compatibility: Box Three™, Box Four™, Shimano® HollowTech II, RaceFace® X-Type
  • Material: 6061-T6 Aluminium cups with ABS plastic sleeve
  • Shell Width: 68mm/73mm
  • Spindle Type: 24mm
  • Bearing Type: Stable outboard position Abec-5 sealed.
  • Thread: BSA 1.37" x 24 TPI
  • Weight: 105 grams/3.7 ounces

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Description Colour Size Wt(g) Part No. Stock Lvl Unit RRP Pack Qty
TWO External BB Set, External Sealed Bearing, 68/73mm x 24mmBlack68/73mm105BBBX2E24K
Low Stock.
£64.99Each 
  • 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
TWO External BB Set, External Sealed Bearing, 68/73mm x 24mmBlack68/73mm105BBBX2E24K
Low Stock.
£64.99Each 
  • 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