Elevate your cycling experience with a cassette designed for smooth and fast shifting. Featuring a gradual gear progression between cogs, this cassette ensures at least five one-tooth jumps on various configurations, providing a wider gearing range that starts at 10-tooth. Crafted to work seamlessly with an XDR driver body, its one-piece machined steel X-DOME design not only enhances performance but also reduces weight for an optimized ride. SRAM Model ID: CS-XG-1290-E1. Experience the precision and reliability of SRAM's engineering, designed to enhance your ride with every shift. Whether you're tackling steep climbs or speeding on flat terrain, this cassette provides the versatility and performance you need to conquer any challenge.