Fsa pf30 road ceramic bottom bracketthe fsa pf30 is designed for afterburner v drive sl k comet and gravity light bb30 cranksets weighing just 89g and consisting of a ceramic bb30 cartridge bearing durability and strength is promised with this bottom bracket delivering a top class quality performance featuresfeatures ceramic bb30 cartridge bearing for greater strength and durabilityafterburner v drive sl k comet and gravity light bb30 cranksetsweight 89gbuy fsa pf30 k force light bb f