Shimano Ultegra (6700/70 & 6800/70) & Dura-Ace (7900/70 & 9000/70) - Oversized Derailleur Cage - 16/16T

The CyclingCeramic Oversized Pulleys have been specially designed to offer an exceptional improvement in the performance and efficiency of your Shimano 9000/6800 serial derailleur. Manufactured from high-quality materials and equipped with advanced technology, these pulleys are the perfect choice for demanding cyclists looking to unleash the full potential of their Shimano 9000/6800 serial transmission.

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1. Aluminum Pulleys and Carbon Plates: CyclingCeramic Oversized Pulleys are equipped with precision-machined aluminum pulleys, combined with lightweight and durable carbon plates. This material combination ensures a significant weight reduction while providing superior strength, perfectly suited for road requirements. Their sleek and aerodynamic design enhances the overall aerodynamics of your transmission, helping you gain speed and efficiency.
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2. Ceramic Bearings Technology: The ceramic bearings in CyclingCeramic Oversized Pulleys are specifically tailored for Shimano 9000/6800 serial derailleurs. With these high-quality bearings, you benefit from a notable reduction in friction during gear changes, resulting in smoother transmission and noticeable energy savings. Enjoy a more efficient pedaling experience, optimizing your performance during climbs and sprints.
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3. Tested by Frictions Facts: CyclingCeramic Pulleys bearings derailleurs have undergone rigorous testing by Frictions Facts, an independent laboratory specializing in analyzing friction and transmission efficiency in cycling. The test results have confirmed that CyclingCeramic's ceramic bearings are among the fastest in the market, with a measured friction of only 0.033w. This exceptional performance ensures ultra-efficient transmission, allowing you to gain speed and precision during your rides.
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\nCompatibility: CyclingCeramic Oversized Pulleys are perfectly compatible with Shimano 9000/6800 serial derailleurs, providing you with a tailor-made solution to enhance the performance of your transmission. \n \nGive your Shimano 9000/6800 serial derailleur a competitive edge with CyclingCeramic Oversized Pulleys. Experience smooth transmission, improved responsiveness, and increased durability during your bike rides. Choose excellence and push your limits with CyclingCeramic! \n \nCompatible with Shimano 9000/6800 serial \n \nIt is recommanded to mount a new chain and add 2 to 4 links more