The BOX Two 24mm Bottom Bracket delivers smooth, efficient power transfer and a clean, reliable fit for 24mm crank spindles. Built for riders who demand performance and durability, this bottom bracket blends precision engineering with sleek style—finished in a bold blue that stands out beneath any frame.
Cold-forged and CNC-machined alloy cups provide exceptional strength without unnecessary weight, while dual-labyrinth bearing covers keep grit and moisture out so the ride stays smooth season after season. Precision sealed bearings ensure minimal drag and maximum longevity, making this an easy upgrade for anyone chasing reliable performance on the road, trail, or track.
Cold-forged and CNC-machined alloy cups for strength, precision, and long-term reliability
Dual-labyrinth bearing covers protect against dirt and moisture for a longer-lasting, smoother spin
Precision sealed bearings reduce friction to keep your pedal stroke efficient
Fits all 24mm crank spindles and frames with 68mm or 73mm x BC 1.37" bottom bracket shells
Compatible with BOX Three, BOX Four, Shimano HollowTech II, and RaceFace X-Type cranksets
Whether building up a new ride or refreshing an old favorite, the BOX Two 24mm Bottom Bracket brings dependable performance and a clean, professional finish to any bike setup.
Specifications & Identifiers
Bottom Bracket Shell I.D.
33.6mmx24tpi
Bottom Bracket Shell Width (mm)
68, 73
Bottom Bracket/Frame Interface
English (BSA)
Defined Color
Blue
Spindle Interface Type
24mm
Spindle Length (mm)
No Spindle
UPC
639266096924
MPN
BX-BB17000EX-BL
Tree Fort ID:
333222471907
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