Reckless endangerment covers the case of pro-riders being idiots. Classification of the vehicle should rely on the vehicle's properties instead of the operators capabilities.
So maybe we can enforce that part a little better.
If I tried to drive a car on pedestrian path at even 10kmh I'd be chased by police helicopter and appear on national news.
However, that shark is jumped as soon as the classification criteria involve operator-dependent properties like maximum speed of a bicycle. It has no operator-agnostic answer.