The Eagle chain has been completely re-engineered, and is produced with new manufacturing technology. The GX Eagle chain is designed with SRAM's Eagle geometry and features solid pin construction, Eagle PowerLock and smooth, efficient shifting that you can count on every time out. The all-new Eagle PowerLock chain connector with Flow Link technology provides better chain-guiding and increased longevity. Unique features and design also provide significantly improved wear resistance on Eagle cassettes and rings. SRAM chain engineers developed PowerLock as a tool free, sure, and consistent way to connect their chains. While PowerLock does not require special tools for install, the especially tight tolerances of 10, 11 and 12-speed drivetrains mandate that each PowerLock is good for a one-time application only.The Flow Link technology utilises ultra-smooth chain inner-plates that are completely devoid of square edges, resulting in a chain that engages the cassette and chainring with far less friction, for quieter performance and better wear life. The design allows a narrower overall profile that can withstand greater angles and allows for a flatter outer plate, which means more consistent chain riveting and enhanced overall strength. The Hard Chrome chain has four times the elongation (wear) resistance to our other chains. This is due to the new finishing process on the inner links and rollers. Push pin strength and ultimate strength are equivalent to our current chains. The Hard Chrome chain lasts longer and is just as strong.X-Glide2 is next generation of SRAM X-Glide technology optimized for the Eagle 12-speed cassette. It provides quick, precise, power-on shifting performance throughout the gear range, and increases chain retention on larger cogs.Ground-Breaking New Chain Design and TechnologyTechnologies: PowerLock / Flow Link / Hard Chrome / X-Sync2Eagle PowerLock Chain ConnectorSolid Pin, Chrome Hardened ConstructionMaterials: Outer Plate - Nickel / Inner Plate - Black Oxide FinishEagle 10-50T Cassette CompatibleImproved Wear Resistance on Eagle Cassettes and Rings12 Speed / 126 LinksApprox. Weight: 270g