Faster. Everywhere. The fastest UCI-legal bike in the world. More speed with less effort. Simple as that.Key Features:System Integrated Design,.The frame, fork and seatpost of the SystemSix were designed together holistically to minimize drag and optimize stiffness for maximum speed.Customized Airfoils,.Every section of the frame, fork and seatpost features it own customized truncated airfoil shape, designed to reduce drag across the effective yaw range.HollowGram 60 KNØT Seatpost,.An vital part of the system, the KNØT seatpost is designed specifically to reduce drag in the high speed airflow that is accelerated between the rider’s legs.Hidden Cable Routing,.Unique design routes brake lines and cables through an opening in the front of the headtube for minimal drag and headache-free serviceability.Connected,.An integrated wheel sensor delivers hyper accurate speed, route and distance info, registers your bike, reminds you of needed service and more, all through the free Cannondale App.Speed Release Equipped,.The Speed Release thru-axles allow faster, easier wheel changes and are compatible with most standard thru-axle wheelsets.BallisTec Carbon,.Cannondale's proprietary high-strength, high-stiffness carbon construction. An advanced matrix of intermediate modulus fibers creates a frame that's light, durable and lively.Â