Shimano 105 CS-R7000 11-speed Cassette
The Shimano CS-R7000 is the suitable 11-speed cassette for new 105 R7000 group. With options to better suit gravel, adventure or CX riding.
Race proven performance: Shimano 105 11-speed Cassette CS-R7000
Coming with the high-end aesthetic and race characteristics of its Dura-Ace and Ultegra big brothers, the new 105 series also considers that most riders will use their bikes for purposes other than competitive racing. 105 is Shimano’s first level 11-speed groupset for those who are seriously committed to road bike riding, but that definition now becomes broader with the inclusion of superior handling and adaptable control to master different riding situations. 

The 11-speed cassette sprocket comes in 4 'standard' sizes (CS-R7000, 12-25T, 11-28T, 11-30T, 11-32T) and a wider 11-34T (CS-HG700) cassette with a hub body designed to fit both road bikes (with spacer) and mountain bikes.
Product features - Shimano 105 CS-R7000 11-speed Cassette
Use: Road
Group: 105
Model: CS-R7000
Type: HG-EV
Gear: 11-speed
Compatible chain: HG-EV 11-speed, HG-X 11-speed
Gradation (choose variant)
11-28 (11-12-13-14-15-17-19-21-23-25-28 teeth)
11-30 (11-12-13-14-15-17-19-21-24-27-30 teeth)
11-32 (11-12-13-14-16-18-20-22-25-28-32 teeth)
12-25 (12-13-14-15-16-17-18-19-21-23-25 teeth)
Material
Spider arm: Aluminum
Spockets: Steel
Lock ring: Steel