BBB Cycling Derailleur Pulley Ceramic 13-Teeth Rear Shimano 12-Speed Jockey Wheels Roller Urban Road Bike MTB Bicycle RollerBoys Ceramic BDP-19, Black

• 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 12-speed Shimano MTB groupsets
• 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

RollerBoys Ceramic Shimano Compatible Derailleur Pulleys 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! 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 12-speed Shimano MTB groupsets Specifications Pulley size: 13T Bearings material: Ceramic Gears: 12-speed Compatible with brands: Shimano Weight (g): 29 Colors: Black Narrow wide: No Part materials: Grivory EMS Modelcode: BDP-19 PART OF YOUR RIDE BBB 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