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Box Two Bottom Bracket Square-Taper Chromoly

MSRP: USD $‎39.99
USD $‎39.99
MSRP: USD $‎39.99
USD $‎39.99

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Box Two™ Square Taper Cromo Bottom Brackets are the best option for young BMX racers and other users of three-piece cranks in search of an affordable, high-performance square taper bottom bracket. Each bottom bracket is hand assembled with a chromoly spindle, sealed bearings, forged and CNC-machined alloy cups and a composite center spacer/seal.

Spindle TypeJIS
Spindle MaterialChromoly
Spindle Length108mm or 113mm
Shell Width68mm
Thread1.37" x 24 TPI
Weight [108]TBD
Weight [113]TBD


The following tools can be used to install/remove this bottom bracket:

  • Park Tools BBT-22
  • Park Tools BBT-32
  • Pedro's Splined Bottom Bracket Socket