NEW Shimano Dura-Ace CS-R9200 Cassette - 12-Speed, 11-34t, Gray height_6ft-04in and easy to use

and easy to use

30tpi Casing

Flexible hose takes stress off the valve stem when pumping

Anodized aluminum and resin outer ring

NEW Shimano Dura-Ace CS-R9200 Cassette - 12-Speed, 11-34t, Gray height_6ft-04in and easy to useThe uninterrupted shifting experience of the Shimano Dura Ace R9200 12 speed cassette range lets you climb, sprint, and push your limits without stopping to think about your next gear change. Larger driving cogs maximize drivetrain efficiency and create compatibility with both Shimano 11 and 12 speed freehub bodies. Shimano HYPERGLIDE+ technology is integrated to provide seamless shifts both up and down the gear range. Faster, seamless shifts under