SRAM BB GxP Team bottom bracket shellGXP: Giga X Pipe External Bottom Bracket Bearing Assembly.The GXP system captures the left side bearing between the axle and the left crank arm while allowing the drive side bearing to float axially on the shaft, thus eliminating the need for side load bearings during adjustment. SRAM BB GxP Team bottom bracket shellWhile other systems rely on side loading the bearings to eliminate play, which causes premature bearing wear, the GPX system eliminates the need for load bearings.GXP Channel Seal design reduces friction and weight for improved feel and performanceCharacteristics:Gutter sealing technologyImproved tool connectionSealed cartridge bearingsEnglish or Italian threadCustom steel bearingsTungsten finish