So aero they practically disappear in the wind, Bontrager's Aeolus 9 D3 Tubular Wheels are just what you need to conquer your next triathlon or time trial. Named after the Greek god of the winds, these full-carbon beauties are handmade in Wisconsin from OCLV carbon, boast 90mm-deep rims, a ProTour-proven shape for perfectly optimized aerodynamics at any yaw angle, and the silky smooth ride of tubular tires. And when the road turns up, these slick aero hoops are still light enough to climb. Up or down, DT Swiss's stellar 180 star-ratchet hub internals deliver super-smooth action. No compromises, no holding back, the Aeolus 9 D3 wheels are here to conquer the clock.