This is the SRAM PC-XX1 Eagle Chain.

It might look normal from the outside, but the engineering inside this incredible chain design that 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 results in a significant reduction in noise, friction and wear on chainrings and cassette cogs.

This design allows for a flatter plate, which means more consistent chain riveting and greater overall strength.

Features:

Groundbreaking chain design and technology
The Eagle chain has been completely re-engineered, and is produced with new manufacturing technology.
Eagle Power Lock chain connector with FLOWLINK technology provides better chain-guiding and increased longevity
The Eagle chain is the quietest, strongest and most wear-resistant chain in the world
Unique features and design also provide significantly improved wear resistance on Eagle cassettes and rings

Product Specifications: