Rhythm is the essence of smooth power transfer and proper gear step is the key to maintaining rhythm over varied terrain. The XTR CS-M9000 11-speed 11-40T cassette is not only the widest range cassette Shimano has ever produced, but also it’s most balanced. Thanks to its Rhythm Step progression, it maintains calculated, shock-free gear steps from one gear to the next; saving you energy and helping you maintain your rhythm on the trail.
• HG-X11 specific tooth profile
• Carbon spider
• Aluminum, titanium and steel cogs
• Rhythm Step progression