The Sunrace CSR86 8 speed Cassette is an excellent replacement or upgrade to your Sram and Shimano 8 speed setup.
The Fluid Drive Plus shifting profile helps to increase the smoothness of shifting.
The Steel rings the engineering grade polymer spacers are built to last. Weighs just under 300g.
Product: SunRace CSR86 Cassette 8-speed - 11-28 - metallic silver
Gear ratio: 11-12-14-16-18-21-24-28
Shifting system: 8-speed