CeramicSpeed External 24mm Bottom Bracket Cups (Shimano, FSA, Rotor)

Ceramic Speed External 24mm Bottom Bracket Cups (Shimano/FSA/Rotor) Bottom bracket upgrade kit for 24mm external Shimano/FSA/Rotor chainsets. Get the unrivalled benefit of smoother running and enhanced durability that ceramic bearings bring to this key component. Silicium Nitride Grade 3 balls (600% smoother; 129% harder 58% lighter). Hardened high-quality ABEC5 races (the only material suitable for races). Low friction Polyamide cages; and low friction seals. Anodized alloy cups in a choice of two colours. Includes 2 threaded cups with bearings 2 dust covers with built-in spacers Spacer tube 10mm syringe of All Round Grease Sticker sheet