SRAM Black Box Ceramic GXP Bottom Bracket cups. Shorter threaded section for use with SRAM and TruVativ GXP road cranksets. Specifically for SRAM and TruVativ integrated spindle cranksets with external cupsSpindle and crank bolt not includedIncludes bearings, shell, aluminum cups, spacers as needed for MTB applicationsBearings provided by Ceramic Speed of DenmarkRoad-specific models have shorter cups (fewer threads) to save weightItem SpecificationsBB Thread TypeItalianSpindle Interface TypeTruVativ GXPBB Shell Width70mm