Featuring windproof Pertex Quantum ripstop fabric and Polartec Alpha insulation

making it compatible with both 1x and 2x drivetrains

with the Coated version offering an additional metallic coating for increased durability and reduced friction

MIX90 Caffeine is the perfect fuel for athletes and fitness enthusiasts seeking that extra edge

The CeramicSpeed kit comes with 2 threaded cups

shimano dura ace fc r9200 40t 12 speed inner chainring Tube Featuring windproof Pertex Quantum ripstopThe Shimano 12 Speed inner Tooth Dura Ace FC R9200 chainring matches the rest of the Dura Ace groupset and gives you the best shifting performance, weight and performance.