Cycling Aero-Suit Drag Area & Wattage Saving Predictor

Aerodynamic power alone is modelled, so rolling resistance, drivetrain losses and any gradient are excluded — the speed gain and time saving are therefore optimistic, since the real rider is also fighting resistances the suit does nothing about. Fabric drag reduction is strongly speed-dependent because the tripped boundary layer only works over a band of Reynolds number: a fabric that saves 4% at 50 km/h can be neutral at 35 km/h and a penalty outside its range. It is also position-dependent, and any figure not measured on the rider in their own position is a guess. Competitive events have equipment regulations covering skinsuits — check them before specifying anything.