Box Two Bottom Bracket Square-Taper Chromoly Size:113mm Available in 31

Available in 31

these are also a requirement for USABMX Nationals

they feature the Box logo molded into the top and have reduced profiles to prevent snagging on pants

How is the Ebike variant different

custom titanium-nitride-coated titanium spindles and carbon fiber center seals

Box Two Bottom Bracket Square-Taper Chromoly Size:113mm Available in 31Box 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.