Box Two Bottom Bracket Square Taper Chromoly

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 center spacer/seal. Specifications:  Process: CNC-Machined Cups Material: Spindle: Chromoly Cups - Alloy Sleeve - ABS Plastic 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 Weight [108-113] (+/- 5%): 272 g / 9.6 oz