The Discus 45 | 32 is the fastest wheel at this rim depth; in fact it tests as fast as other 60mm deep rims. So you have the advantages of a shallower rim, like ease of handling in crosswinds, and the speed of a deeper rim. The Discus 45 | 32 achieves this with its unique NoseTail design. By definition rim design is a compromise, because it whatever shape is aerodynamic on the front half doesn’t work so well 180 degrees later when it’s backwards.
The NoseTail shape developed by the legendary Dave Kennedy (an aerodynamics professional for over 50(!) years) and 3T’s Head of Design Gerard Vroomen actually sacrifices some performance on the front half of the wheel in favor of working better on the back half. Not only do the two effects cancel each other out, but the resulting shape also requires less rim depth and better guides the airflow from the rear of the front wheel onto the downtube.