Pyoranosat ROSE | Shimano Dura Ace 9100 Bsa/Ital. Bottom Bracket Cups

Lightweight Shimano Dura Ace 9100 Bottom Bracket Cups (Bsa/Ital.) With Small Balls For High Durability And Reduced Friction. A Sophisticated Sealing Construction Ensures Long Durability And In Combinatin With Shimano Road Cranksets With Integrated Axle, It Offers A Smoother Pedal Stroke As Well As Improved Stiffness.