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:

• Compat - Speed (CN)    12
• Chain length (links)    126 links
• Chain connector    PowerLock
• Inner link finish    Chrome plated +PVD
• Outer link finish    Nickel+PVD
• Pin variant    Hollow Pin
• Chain Technology    Eagle
• E-Bike Approved    Yes
• Weight (g)    239
• Weight Based On    114 links

Vendor Item No:

• 00.2518.024.020 (Gold)
• 00.2518.024.021 (Black)
• 00.2518.039.010 (Multicolor)
• 00.2518.043.010 (Copper)