RPM^™ combines hit music with the motivational power of an inspiring Instructor leading you on a journey of hill climbs, sprints and flat riding. The workout is based on the science of Cardio Peak Training, which involves maintaining your heart rate at an aerobic training base (between 60 and 80 percent of your maximum heart rate) with interspersed peaks of intensity (pushing you to 85 to 90 percent of your max). This specific blend of steady-state and high-intensity builds cardio endurance, and also drives the transformative fat-burning effects associated with high-intensity interval training.