12-Speed SRAM Red E1 XD-R Cassette

The SRAM Red E1 XG-1290 cassette delivers fast, precise shifting across a wide gear range – ideal for racing with SRAM’s 12-speed system. It’s optimized for wireless electronic shifting and crafted from a single piece to keep weight to an absolute minimum.

With at least five one-tooth jumps, you get smooth, predictable gear progression that makes it easier to maintain the perfect cadence. The small 10T cog further expands the gear range, offering greater versatility whether you’re chasing speed on the flats or tackling steep climbs.