XG-1290 E1

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• 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 wide r range • 10-tooth start helps provide a wider gearing range • Designed to work with an XDR driver body • One-piece machined steel X-DOME design for weight savings • SRAM Model ID: CS-XG-1290-E1 Show more