Box Two™ Square Taper Chromoly 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 centre spacer/seal.

Specifications

• Spindle: Chromoly
• Cups: CNC Machined Alloy
• Sleeve: ABS Plastic
• Bearing: Precision Abec-5 Sealed bearings
• Finish: Nickel Coating
• Spindle Type: JIS Square Taper
• Spindle Length: 108mm or 113mm
• Shell Width: 68mm
• Thread: 1.37" x 24 TPI
• Compatibility: BSA Threaded
• Torque Spec: 35-50Nm
• Weight: [108-113] (+/- 5%): 272g/9.6 oz