Dura-Ace CS-9200 12-Speed Cassette Range:11-30 Suede zipper shield protects your

Suede zipper shield protects your chin from abrasion

5" or 29" wheels and tires

Orbit chain management technology keeps the drivetrain quiet and secure

Extra long runtime perfect for riders who do not want to charge lights on a daily basis

Delivering exceptional fore-aft rigidity

Dura-Ace CS-9200 12-Speed Cassette Range:11-30 Suede zipper shield protects yourThe 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