Shimano Dura Ace R9100 11sp BB Cups BB-R9100-Bearings-Roger Garage Custom Bikes

Shimano Dura Ace R9100 11sp BB Cups BB-R9100

Regular price
£54.99
Sale price
£54.99

Outside positioned bearings for better weight distribution and more stability. Bottom bracket has smaller, bearings than current model for lightweight.


  • New improved sealing ensures 50% less drag