Options to suit 68mm, 73mm, 83mm and 100mm bottom bracket shell widths. Available to fit 24mm and 30mm crank axles. Available with replaceable stainless bearings greater durability. Truvativ conversion kit available separately. Cups pressed in and held in place by a screw-in centre tube to prevent slipping and play. Easy to service and replaceable parts. Weight from: 112g.