**SRAM GX Eagle 12-Speed Chain & Rear Derailleur Bundle Long Cage, 52t Max, Lunar / Silver/Gray** Upgrade your mountain biking setup with this durable and high-performance SRAM GX Eagle 12-Speed Chain and Rear Derailleur bundle, engineered for precise shifting, long-lasting durability, and seamless compatibility. Perfect for aggressive trail riding, enduro, or all-mountain adventures, this combo ensures optimized drivetrain efficiency and reliable gear changes in demanding conditions. **SRAM GX Eagle Chain 12-Speed, 126 Links, Silver/Gray** Crafted with solid pins and the same link geometry as the renowned XX1 Eagle, this 12-speed GX Eagle chain provides quiet operation, enhanced durability, and precise shifting across rugged terrains. Featuring a single-use master link for easy installation and maintenance, this chain is designed to withstand the rigors of aggressive riding. Its sleek Silver/Gray finish complements a variety of bike styles, while its materials and engineering deliver reliable performance and long service life. **SRAM GX Eagle Rear Derailleur 12-Speed, Long Cage, Up to 52t, Lunar** Designed for versatility and durability, the GX Eagle Rear Derailleur features an innovative cage architecture that improves chain management, ensuring smooth, precise gear shifts even under heavy load. Its backward compatibility means it works flawlessly with 10-50t and 10-52t cassettes, making it a versatile choice for diverse riding styles. Sealed cartridge pulley bearings and re-positioned Cage Lock reinforce longevity and ease of use, while the Lunar colorway and Eagle Colorsystem provide a sleek, modern look that matches any SRAM Eagle drivetrain. **Performance & Engineering Highlights:** – Advanced materials and construction for enhanced longevity and quiet operation – Optimized for 12-speed Eagle drivetrains with precise shift performance – Compatible with a wide range of cassette sizes (10-50t & 10-52t) – Robust design with sealed bearings for demanding trail conditions – Sleek, color-coordinated aesthetic with innovative cage architecture for improved chain retention **Perfect for Trail, Enduro, and All-Mountain Riders** This SRAM GX Eagle bundle combines proven drivetrain components that deliver reliable shifting, exceptional durability, and performance in diverse off-road environments. Whether upgrading your existing setup or building a new bike, these components provide the performance and style necessary for aggressive trail riding, technical descents, and challenging climbs. **Upgrade your mountain biking experience with the SRAM GX Eagle 12-Speed Chain and Rear Derailleur bundle engineered for performance, built for adventure.**