CASSETTE SPROCKET CS-R7000 105 11 SPEED 11-28T The R7000 cassette features an increased range of high-performance gearing combinations Speeds: 11 Chain Compatibility: HG-EV 11-speed/HG-X11 Fits Shimano HG-11 speed road cassette bodies Gear Combinations: 11-28T, 11-30T, 11-32T Aluminum spider arm Nickel plated steel cogs Lock Ring Material: steel