Product description: A bottom bracket built to outlast your frame. BB ALPHA features hardened stainless-steel races hand-built with grade-3 Silicon Nitride ceramic balls, custom-engineered seals and precision dust covers, delivering up to 500 better moisture protection, while still providing ultra-low friction performance. The simplified spacer tube design and lighter cups ensure quick installation and a 10 weight reduction over previous generations. All CeramicSpeed BB ALPHA models are backed by a lifetime warranty. Precisely pair a 24mm axle crank from Shimano or other brands with a threaded T47 frame that is 85-86mm wide with bearings placed inboard by selecting this high quality bottom bracket from CeramicSpeed. Specifications: – Discipline: Road, Tri, and Track – Net weight: 96.0 g – Gross Weight: 214 g – BB Type: T47 86mm – Crank Diameter: 24.0 – Crank Brand: Shimano
