XX1 Eagle Copper Chain Freehub Bodies Directional chain

Directional chain

the derailleur features and ON/OFF switch for the chain tensioner

Four-piece polycarbonate interlocking Hardbody shell

for tailored lasting comfort

XX1 Eagle Copper Chain Freehub Bodies Directional chainThe strongest system is a chain with no weak links. Eagle chain links have a smooth radius with no sharp edges or chamfers, which yield a significant reduction in noise, friction, and wear. This design also allows for a flatter plate for more consistent chain riveting and greater overall strength. It's also the biggest contributor to the ultra smooth, precise, durable, and quiet performance found in the 10 50T cassette and X SYNC 2 chainrings.