KCNC Ruota puleggia oversize bici da strada per Shimano r9100/r8000 rosso
The system is compatible with Shimano Ultegra r8000 r8050 / Dura Ace r9100 r9150 11s rear derailleur. KCNC Wheel Bearings reduce friction, which gives you a lower rolling resistance. For Shimano Ultegra R8000/8050 and Dura Ace R9100/9150 use.