These aluminum bicycle wheels come with the aerodynamics of carbon wheels and are pretty lightweight for climbing. They have superior ceramic braking power that can even survive the ParisRoubaix cobbles. The AL33 has extreme stability while cornering and descending with high speed. It also includes sublime braking power and modulation that has a striking appearance in both aero and lightweight bikes. Each wheel has been made out of extremely strong AF9X-t6 aluminum alloy. A unique ET2 spoke lacing pattern ensures optimal stability in cornering. These wheels also feature carbon reinforced straight pull hubs with a ceramic braking surface on the rim. The toroidal shape combined with a wide inner bead allows for higher air volume which improves comfort and reduces the risk of pinch-flats. A toroidal wider rim design also makes a wheel laterally stiffer (side-to-side deformation). When it comes to aerodynamics this proves to be superior to the traditional V-shape rim designs.