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. The SRAM RED XG‑1290 is the lightest and most advanced 12-speed road cassette designed for AXS systems. It features a one-piece steel X‑DOME structure, gradual gear progression, and refined tooth profiles for lightning-fast, precise shifting and an ultra-narrow build.
FEATURES
Flattop Flattop X‑Range Design – Enables narrower chain and drivetrain efficiency
X‑DOME One‑Piece Construction – Machined from steel to reduce weight and preserve durability
Gradual Gear Progression – At least five one‑tooth jumps for smooth transitions in 10–28, 10–30, and 10–33 variants
Wide Range Options – Available in four sizes: 10–28T, 10–30T, 10–33T, and 10–36T
XDR Driver Compatibility – Specifically engineered for XDR road driver bodies
SPECIFICATIONS
Model: CS‑XG‑1290‑E1
Speed: 12‑speed
Gear Range Options: 10–28T, 10–30T, 10–33T, 10–36T
Cog Construction: One-piece X‑DOME steel
Chain Technology: Road Flattop (E1)
Driver Body: XDR
Weight: Approx. 180 g (10–28T version)
Compatibility: SRAM RED AXS 12-speed road drivetrains
