Super tough BSD Substance bottom bracketkit including 2 Sealed bearings, CNC’d spacers, tube spacer, sprocket bolt and spacers, available for 19, 22 or 24mm spindles.

Available in 19mm, 22mm and 24mm to fit most spindle types
Precision sealed cartridge bearings
Fully CNCd 6061 aluminium spacers
Spacer kit to ensure correct fit