MotoGP racing requires intense mental and physical strength. Manhandling a 350-pound machine capable of 240 horsepower on serpentine tracks all around the world from March through November requires world-class fitness. With a season stretching from the first winter test through the final round in Valencia, most of the 23 riders of the 2017 premier class roster use bicycling to keep in tip-top shape. Known for decades to be ideal for developing endurance, increased lung capacity and lean muscle, bicycling as cross training has bolstered the results of several top riders. And new bicycle technology (power/wattage meters) allows riders to push their limits in their quest for the podium.