It might look normal from the outside but the engineering inside this incredible new SRAM X01 Eagle HollowPin 12 Speed Chain design makes possible a gear range previously found only in 2-chainring drivetrains. And it’s also the biggest contributor to the Eagle™ drivetrain’s ultra-smooth precise durable and quiet performance. The Eagle™ chain’s links have a smooth radius with no sharp edges or chamfers which yield a significant reduction in noise friction and wear on chainrings and cassette cogs. This design also allows for a flatter plate which means more consistent chain riveting and greater overall strength. HARD CHROME™ technology extends the chain’s optimal performance life.Groundbreaking new chain design and technologyThe Eagle™ chain has been completely re-engineered and is produced with new manufacturing technologyAll-new Eagle™ PowerLock® chain connector with FLOW LINK™ technology gives better chain-guiding and increased longevityThe Eagle™ chain is the quietest strongest and most wear-resistant chain in the worldUnique features and design also give significantly improved wear resistance on Eagle™ cassettes and ringsSpecificationsTechnology Highlights: FLOW LINK™ HARD CHROME™ POWERLOCK® X-SYNC™Compatible Gears: Eagle™ 10-50t cassette onlyClosing Link: Eagle™ PowerLock® PVDOuter Plate: NickelInner Plate: Chrome platedPin Treatment: Chrome hardenedRivet Type: Hollow Pin™Recommended Group: XX1 Eagle™ or X01 Eagle™Speeds: 12Other: Chain length – 126 linksColors: SilverCompatibility: Eagle™