SRAM built the incredible new XX1 Eagle drivetrain to work quietly, intuitively, precisely and perfectly. Whether you’re an hour and twelve minutes into a World Cup XC or, just about to hit the top of Pearl Pass—XX1 Eagle is ready for that and every place in between. This cross-country-optimized drivetrain combines our newest generation of SRAM 1x drivetrain technological advancements with lightweight materials. With a greater gear range of 500-percent, XX1 Eagle gives you smoother, more precise shifts with greater durability for long lasting performance so you can spend more time in the gear you want. XX1 Eagle just rewrote the rules of freedom.