Shimano Dura-Ace BB-R9100 Bottom Bracket (70mm) (24mm Spindle) 9 SPEED choose a AGU cycling helmet

choose a AGU cycling helmet in the larger size to make sure your helmet fits

This not only gives the SPEEDROCKER a sleek overall appearance but also maximises the available clearance between the tyre and mudguard

the inner tube

due to spreading and twisting

Shimano Dura-Ace BB-R9100 Bottom Bracket (70mm) (24mm Spindle) 9 SPEED choose a AGU cycling helmetThe Shimano Dura Ace BB R9100 Bottom Bracket is system engineering at its peak. Each of the components magnifies the qualities of the others for an unparalleled level of performance. Optimizing input to maximize output. That's how it achieves supremacy. Features: Bottom bracket with small ball bearings for extra weight savings Advanced seal construction for smoother rotation Specifications Frame Interface: Italian Threaded Spindle Interface: 24mm