BB92 bottom bracket uses industry-exclusive, dual-row bearings to fit big performance into a small BB shell, with a center tube to seal the BB shell.Compatibility: BB92 = 41mm shell diameterFeatures: BB92: Industry-exclusive dual-row bearings maximize durability.Size: BB1USA-102 BB92 PRESSFIT Bottom Bracket for 68/73mm & 83mm shell BB92 frames. For 24mm crank spindles.Spindle: 24mm (Base)Weight: BB92: 92g