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.
Width 113 or 118mm ?
Measure the bottom bracket axis you wish to replace.
L = length of the bottom bracket axle.