The Shimano 11 Speed inner 39 Tooth Dura-Ace FC-R9100 chainring matches the rest of the Dura-Ace groupset and gives you the best shifting performance

45% faster than the FD-R9150 and lighter than 100 grams

and precise shifting performance

Its aluminium cage and 12-speed capability

we refined the arm design and strategically machined the structure to achieve significant weight reduction while making only minimal compromises in impact strength

ceramicspeed ufo wax ultra endurance kit color_Dark Celeste The Shimano 11 Speed innerExperience the ultimate in chain lubrication with the Ceramicspeed UFO Ultra Endurance Wax Kit. Engineered for unmatched durability and whisper quiet performance, this hot melt wax pushes the limitskeeping your chain clean and smooth for over 1000 km in varied conditions. Developed by expert chemists, its fully biodegradable and non toxic, setting a new standard for eco friendly endurance. Ride farther, ride cleaner, and leave the competition behind