T47 BOTTOM BRACKETS Our T47 bottom brackets are made for multiple configurations. Not only is it compatible with 22/24mm, 24mm, 29mm, and 30mm spindles but also 68/86mm and 73/92mm bottom bracket shell widths. All of our bottom bracket cups are made with 6061 aluminum with angular contact stainless bearings.* *29mm/DUB bottom brackets use radial ball bearings CRANK COMPATIBILITY: 30mm spindle internal or external 29mm spindle internal or external 24mm spindle internal or external 22/24mm GXP spindle internal or external BOTTOM BRACKET SHELL WIDTH COMPATIBILITY: 68mm 73mm 86mm 92mm