The Shimano Dura-Ace 9000 cassette provides accurate, fast shifting and low weight thanks to carbon and titanium construction
Using a carbon fiber and alloy spider and five titanium sprockets, the Dura-Ace R9100 cassette provides accurate shifting and light weight to the most discerning road cyclists on the planet.
HG-EV – HG-EV cassette sprocket is for rider-tuned gear combination & cadence management. Shimano provide optimal 11-speed drivetrain gear ratio; you can choice wider and closer gear combination available to match various riding disciplines. HG-EV cassette sprocket is obtained 11-speed gear without compromising the 10-speed durability and improved HyperGlide shifting.