The SRAM PG-1170 Cassette provides smooth shifting across 11 gears with its semi-spidered steel cogs. Ideally pairing with SRAM's Force 22 groupset, the PG-1170 cassette features a 16T cog for extra cadence control and delightfully smooth shifting when you're hovering around the middle block of the cassette. X-Glide shifting technology eliminates flex between the teeth to enhance shifting smoothness, especially on downshifts. Note that SRAM recommends pairing this cassette with its PC-1170 chain for flawless shifting. Moreover, it's only compatible with 11-speed hub/freehub bodies, and it includes an anodized, laser-etched aluminum lockring.