The 353 NSW Carbon Disc Brake Wheel features the modern benefits of tubeless compatibility and a disc brake design. This speed-demon of a wheel uses Zipp's sawtooth rim design for advanced aerodynamics and crosswind stability. With thru-axle and disc-only compatibility, these wheels are designed to hold up to modern standards. We're looking forward to free watt savings on the 353's, as the hookless rim profile gives tires a better aerodynamic shape. The 353's come in a 25mm internal width, but with hookless tech, we can comfortably run as narrow as a 28mm tire. We're installing these on our race road bikes, but the fast-rolling hoops could fit in just as well on our triathlon bike. Weighing in at a svelte 1255g, with the Zipp 353's there are no excuses for poor performance on race or training days.