With 11-30 and 11-34 Shimano Dura-Ace CS-R9200 12-Speed Cassette options, Dura-Ace riders now have even lower climbing gears. No matter your riding level, you can experience the best road performance available.
Despite even wider gear ranges, smooth, consistent gear steps remain a Shimano hallmark thanks to the addition of the 12th cog. Keeping things simple, the R9200 rear derailleur is offered with a single cage length that is compatible with the entire range of R9200 cassettes.
The Dura-Ace 12-Speed Cassette is compatible with Shimano 11-speed freehub bodies or the new Shimano 12-speed freehub body.
HYPERGLIDE+ cassettes have revolutionized off-road shifting with their seamless shifts both up and down the gear range. Shimano translated that technology from MTB to the tarmac. Even during maximal efforts up a climb or nearing the finish line, riders no longer need to back off to perform a shift.
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Cassette Type: Shimano 12
Cassette Use: Road
Average weight: 223g (11-30T) 253g (11-34T)
Compatible chain: HG 12-speed
Steel gear_QTY (pcs): 6 (11-30T) 5 (11-34T)
Titanium gear_QTY (pcs): 6 (11-30T) 7 (11-34T)
Aluminum spider arm_QTY (pcs): 2
Drivetrain Speed: 12-Speed
Gear Steps: 11-12-13-14-15-16-17-19*-21*-24*-27*-30*T
Gear Steps: 11-12-13-14-15-17-19*-21*-24*-27*-30*-34*T
11/30 Tooth - 12 Speed
Mfg PartNum: ICSR920012130
11/34 Tooth - 12 Speed
Mfg PartNum: ICSR920012134
The new 12speed Shimano cassette is part of the updated groupset. Like all of the Dura Ace components it's well crafted and allows for smooth and efficient shifting.
As a person who climbs a LOT the 11-34 is perfect for both rolling hills and long sustained climbs, the weight is managed by balancing titanium cogs with aluminum, adding strength where needed and lightness in concert.