The engineers at SRAM have put a huge amount of fanatical detail into every aspect of the XX1 Eagle chain to make  to provide you with the ultimate combination of consistent performance, uncompromising strength, ultra-light weight, and silky smooth, whisper-quiet operation. 

These chains don't just look super fancy but they are loaded with features that make them the quietest, strongest, and most wear-resistant chain you're likely to find anywhere