DirectFit 30 for 42mm shell BB30/BBRight DirectFit frames where bearings press directly in, without cups. 30mm spindle compatible PressFit 4124 BB86 Road compatible left right 7075-T6 aluminum bottom bracket cups, stainless bearings. 24mm spindle compatible PressFit 4130 BB86 Road compatible left and right 7075-T6 aluminum bottom bracket cups, stainless bearings. 30mm spindle compatible BB4224 Reducer BB allows installation of 24mm spindle cranks on 42mm BB30 frames. Left and right 7075-T6 aluminum bottom bracket cups, stainless bearings. Cups thread together in center for perfect bearing alignment. 24mm spindle compatible BB4224 Reducer BB allows installation of 24mm spindle cranks on 42mm BB30 frames. Left and right 7075-T6 aluminum bottom bracket cups, stainless bearings. Cups thread together in center for perfect bearing alignment. 24mm spindle compatible PressFit 4624 Reducer BB allows installation of 24mm spindle cranks on 46mm shell PressFit30 frames. Left and right 7075-T6 aluminum bottom bracket cups, stainless bearings. 24mm spindle compatible PresFit 4630 for 46mm shell BB30PF, BB386 and BBRight frames. Left and right 7075-T6 aluminum bottom bracket cups, stainless bearings BB4224 BB, 73mm Mtn black