You will make a statement when you ride the Diamondback® Adult Serios S Road Bike at your next race event. Engineered with a full carbon frame and a Time Trail frame, this bike delivers an ultra-light ride and a more aerodynamic pedaling position for fast speeds. With a Serios Aero Fork, Ultra Sport 700c wheels, and a Shimano 105 drivetrain, the Serios S will keep you at the front of the pack.