Begin with 20 one-leg pedaling efforts. Switch immediately from one leg to the other until you have completed all 20 efforts. Then ride at Endurance for the next 15 minutes. Complete 10 x 1-minute HIGH CADENCE FAST PEDALS targeting 135+ RPM, with 2-minute rests between intervals. Finish with 10 minutes at TEMPO. Focus on keeping your cadence between 85 and 95 RPM.