With so much on the line at Kona, what could convince top pro triathletes to use any equipment that they haven't raced on before? For Belinda Granger, Jo Lawn, and T.J. Tollakson, the answer was 9 seconds over 40 kilometers. Zipp's Vumachrono is simply that much faster than other aero cranksets. Compared to traditional cranksets, the savings can exceed 25 seconds.