Free Dock to Dock ShippingWith the Monark ProVo2 928E, the calculation of the test value is in the display and presented in l/min and ml/kg/min. The traditional kp scale is converted in watts. A walk through frame and the easy adjustments of the saddle and handlebar make this bike user friendly. The subjects should pedal at a frequency of 60 rpm during the test. A perfect bike for aerobic tests and training.