Sram Red E1 XG-1290 Cassette - 12 Speed - Silver / 10-28 / 12 Speed

Wide range and tight jumps? Why not both? Our lightest, most durable cassette breaks new ground for gearing choices as well. Four distinct cassette options, including our first 10-30T and 10-36T RED cassettes, each provide secure shift ramps specifically designed for electronic shifting, whether racing road on a 10-28T or creating an all-road setup with a 10-36T. Carefully chosen tooth jumps keep you in the right gear when you’re out of the saddle on steep climbs and making fine changes to hold a wheel while approaching a sprint. Features Designed for smooth and fast shifting. Gradual gear progression between cogs at least five one-tooth jumps on 10-28T, 10-30T and 10-33T cassettes while still offering a wider range. 10-tooth start helps provide a wider gearing range. 10-30T and 10-36T options available in RED for the first time. Designed to work with an XDR driver body. One-piece machined steel X-DOME design for weight savings. Specification Speed (CS) 12s. Cog finish (Cassette) Silve