It's tough trying to be the best all the time, but Shimano's been at it for years, and this year is no different. Introducing the new XTR. This Shimano cassette is 10-speed, and it features Dyna-Sys technology to give you smooth, reliable shifting, no matter what. The new 10-speed cassette has an alloy carrier and 5 titanium cogs to shave grams. The refined tooth profile optimizes shifting, and is perfect for use with HG-X chains and Shadow rear derailleurs.
3-piece spider for stiffness under load
Sprockets are drilled and cut away to shave precious grams without sacrificing strength