Bottom Bracket CERAMICSPEED BSA 30 Black

Specifications: Application: Cross Country Type: BSA Shell Width: 73 mm Axle Diameter: 30 mm Technical Information: Bearings: Ceramic Compatibility: cranks with 30 mm axle Features: high-performance bearings with special ceramic balls made of grade 3 silicon nitride (best achievable degree for ceramic bearings) CeramicSpeed bearing balls: 15% harder, 100% smoother and 99% more resilient than commercially available ceramic bearing balls ball bearing retainer made of reinforced polyamide, race made of hardened steel with polished channel additional metal-coated race for more performance and durability reduced friction: smoother running handmade in Denmark