BBB Cycling Derailleur Pulley Ceramic 11-Teeth and 13-Teeth Rear Shimano 11-Speed Jockey Wheels Roller Urban Road Bike MTB Bicycle RollerBoys Ceramic BDP-18, Black, One Size

RollerBoys Ceramic Shimano Compatible Derailleur PulleysThe 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!Ceramic bearing for minimal resistance and exceptional durabilityComposite material provided by EMS Swiss, with 40% glass-fiber mixtureSealed bearings with aluminium cover for optimal durabilityLubed with special ceramic oil for an even lower resistanceCompatible with 11-speed Shimano GRX (810/815)SpecificationsPulley size: 11T/13TBearings material: CeramicGears: 11-speedCompatible with brands: ShimanoWeight (g): 26Colors: BlackNarrow wide: NoPart materials: Grivory EMSModelcode: BDP-18PART OF YOUR RIDEBBB Cycling wants to be there for every cyclist. We offer more than 1.500 unique cycling products that have received more than 100 product and innovation awards over the years. Products that are part of every ride, bringing fun to cycling, and making sure cyclists are spending more time on their bikes together with their friends

• QUICK SHIFTING PERFORMANCE: The RollerBoys will keep you rolling and make your bike ride so smooth that you will never stop anymore! The special 12 teeth narrow-wide profile gives you the perfect chain retention and makes sure you can shift to a higher gear with the speed of light!
• SHIMANO COMPATIBLE DERAILLEUR WHEELS: These bike pulleys are compatible with 11-speed Shimano GRX (810/815)
• SMOOTH CERAMIC BEARINGS : The RolleyBoys Ceramic Jockey Wheels are equipped with low friction Ceramic bearings and are lubricated with special Ceramic oil for even more smoothness and exceptional durability over CrMo bearings
• DURABLE AND STRONG: Made of Grivory EMS, this composite material has a 40% glass-fiber mixture which makes it extra strong and durable compared to other derailleur pulleys
• ALUMINIUM BUSHINGS: The RollerBoys Derailleur Pulleys have anodized Aluminium bushing for added stiffness and extra protection for your bearings