Take on every climb and descent with the SRAM GX Eagle Lunar 12-speed MTB rear derailleur, built to handle shifting demands with precision and ease. Its updated cage architecture improves chain stability, ensuring smooth transitions even under load. Compatibility with both 10-52t and 10-50t cassettes offers flexibility for riders seeking seamless performance. The GX Eagle colourway blends effortlessly with any Eagle cassette and chain combination, adding style to reliability. Advanced technologies like CAGE LOCK simplify wheel and chain installation, while ROLLER BEARING CLUTCH minimises bounce and chain slap for a quieter, more focused ride. X-ACTUATION ensures consistent, sharp shifting across the entire gear range, letting you power through every moment. Features: - Backwards compatible, works with both 10-50t and new 10-52t cassette- Updated cage architecture provides better chain retention and precise shifts.- Speed (RD): 12- Cable pull ratio: X-actuation- Cage (RD): Long- Max tooth: 52

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