Box Three Square Taper Steel Bottom Brackets are the best option for young BMX racers and other users of three-piece cranks in search of the most economical bottom bracket in the Box family. Each bottom bracket is hand-assembled with a steel spindle, sealed bearings, forged and CNC-machined alloy cups and a composite center spacer/seal.

Specs: Spindle Type JIS
Spindle Material Steel
Spindle Length 113mm
Shell Width 68mm
Thread 1.37″ x 24 TPI
Weight TBD