Box Two Square Tapered BB

Spindle Type JIS Spindle Material Chromoly Spindle Length 108mm or 113mm Shell Width 68mm Thread 1.37" x 24 TPI Weight [108] TBD Weight [113] TBD 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.