True competitors are always looking for a performance advantage — a relentless pursuit of equipment that is lighter, stiffer and stronger. To create the best drivetrain possible, we started with a completely reengineered crankset. design Our all-new XX1 Eagle™ crankset is the lightest, stiffest and strongest on the market. A special hollow internal architecture, combined with our proprietary CARBON TUNED™ lay-up, allows us to build a lightweight and ultra-energy-efficient crankset perfectly suited for the high - wattage output and smooth style of cross country riding and racing. Teamed up with a new Eagle™ direct mount chainring, and as an integral part of the Eagle™ drivetrain, the new XX1 Eagle™ crankset puts more focused power into every ride.