BBB Cycling Rollerboys Ceramic Derailleur Pulleys Shimano GRX 11T-13T BDP-18

The RollerBoys Ceramic will make your bike ride so smooth that you will never stop anymore! The composite material is strong and durable and the special teeth pattern makes sure you can shift to a higher gear with the speed of light! The ceramic bearings make sure your pulleys will roll super smooth. High-quality pulley wheels are a must-have for every serious bike rider, with the RollerBoys Ceramic you are good to go! Features of BBB Cycling Rollerboys Ceramic Shimano GRX 11T-13T: Ceramic bearing for minimal resistance and exceptional durability Composite material provided by EMS Swiss, with 40% glass-fiber mixture Sealed bearings with aluminium cover for optimal durability Lubed with special ceramic oil for an even lower resistance Compatible with 11-speed Shimano GRX (810/815)