SQUARE TAPER

Affordable, high-performance square taper bottom bracketHand assembled with a chromoly spindle, sealed bearings and forged and CNC-machined alloy cups68mmENGSQR JIS108mmAlloyBlack

Affordable, high-performance square taper bottom bracketHand assembled with a chromoly spindle, sealed bearings and forged and CNC-machined alloy cups68mmENGSQR JIS113mmAlloyBlack

Affordable replacement bottom brackets with forged chromoly spindlesSteel cups with sealed cartridge bearings featuring oversized 3/16` ball bearings68mmENGSQR JIS103mmSteel295gSilver

Affordable replacement bottom brackets with forged chromoly spindlesSteel cups with sealed cartridge bearings featuring oversized 3/16` ball bearings68mmENGSQR JIS110mmSteel295gSilver

Affordable replacement bottom brackets with forged chromoly spindlesSteel cups with sealed cartridge bearings featuring oversized 3/16` ball bearings68mmENGSQR JIS113mmSteel295gSilver

Affordable replacement bottom brackets with forged chromoly spindlesSteel cups with sealed cartridge bearings featuring oversized 3/16` ball bearings68mmENGSQR JIS118mmSteel295gSilver

Affordable replacement bottom brackets with forged chromoly spindlesSteel cups with sealed cartridge bearings featuring oversized 3/16` ball bearings68mmENGSQR JIS122mmSteel295gSilver

Steel bodySteel cupsChromoly spindleSealed bearings88mmENGSQR JIS140mmSteel305-320g

 With precision sealed bearings and cold-forged, aluminum CNC machined cups, Box One Titanium Square Taper bottom brackets are the best option for young BMX racers and other users of three piece cranks in search of performance gains and weight savings Hollow, custom titanium-nitride coated titanium spindles and carbon fiber center seals, helping keep the weight down between 185 and 190 grams Other features include cups that are anodized black with anodized gold inner seals, and...

 With precision sealed bearings and cold-forged, aluminum CNC machined cups, Box One Titanium Square Taper bottom brackets are the best option for young BMX racers and other users of three piece cranks in search of performance gains and weight savings Hollow, custom titanium-nitride coated titanium spindles and carbon fiber center seals, helping keep the weight down between 185 and 190 grams Other features include cups that are anodized black with anodized gold inner seals, and...

 CNC machined hollow chromoly spindle Sealed bearings Forged alloy cups 1.37` x 24 TPI English thread SHIMANO Equivalent BB-UN55 68mm  ENG SQR JIS 113mm Alloy 220-240g

 CNC machined hollow chromoly spindle Sealed bearings Forged alloy cups 1.37` x 24 TPI English thread SHIMANO Equivalent BB-UN55 73mm ENG SQR JIS 113mm Alloy 220-240g