The E-Thirteen BB92 Bottom Bracket features dual-row bearings to fit big performance into a small BB shell. High-performance seals, a centre tube (for extra sealing) and custom grease mean top-notch durability and smooth spinning for kilometre after kilometre.Style: Pressfit.Shell width: Suitable for use with 68/73mm & 83mm shell BB92 frames.Spindle size (diameter): This BB is for use with 24mm spindles.Bearing style: Custom flanged dual row bearings filled with quality grease.Bearing cup/shell material: Stainless steel cups, plastic internal shell.Installation tools: Park BBT-90.3 Press Fit BB Bearing Tool Set Park HHP-2 Bearing Cup Press Tool (or similar) Removal tools:Park BBT-90.3 Press Fit BB Bearing Tool SetWhat's in the box: Bottom bracket and spacers. (1 x 3.5mm, 4 x 1mm, 2x 0.5mm)