The sight of a lone rider hunched over the aero bars may lack the spectacle of a field sprint or the epic scenery of a mountain stage. But if you’ve ever poured yourself into a time trial or a bike leg, then you’ve shared an experience with rising triathlon star Linsey Corbin and Olympic time trial champion Fabian Cancellara. On their bikes, you’ll find the 108mm-deep Zipp 1080, the world’s fastest non-disc wheel. To improve upon the previous holder of that title, our 81mm-deep 808, we tested and retested a range of prototypes for the 1080 before settling on fully toroidal shape that blends 5 distinct curves to smooth airflow.