The SRAM GX Eagle 12-speed chain provides precise shifting across all 12 gears of the Eagle drivetrain without the higher price tag than circuits XO1 and XX1. Instead of using a hollow pin design like her brighter brothers GX Eagle 12-speed chain uses solid pin design for budget-conscious riders who are not too concerned with counting every last gram. Nevertheless you will find the same Flow Link technology which is used in the more expensive XO1 and XX1 circuits, which means that the inner plates are square edged and have a beveled profile which reduces overall friction for better grip increasing the service life and reducing noise when switching your transmission. And the best part is , it is designed to work seamlessly with all Eagle 12-speed transmissions which means that you can replace it with your X01 and XX1 configurations as a low-cost replacement.