BBright46 Interlock bottom bracket.-Frame width:79 mm.-Frame inner diameter:46 mm.-Available for:Shimano, SRAM GXP, BB30.PF30 crank sets.-CEMA SRC Ceramic or Stainless bearings.-Aluminium dust covers.-Colours:black, red.Features:Frame Inner Diameter:46 mm.Shell width:79 mm.Axle diameter:24 -22 mm.crank type:SRAM GXP.Bearing type:ceramic.Color:black.