Do you want me to enumerate the ways in which a bike is not a motorbike and the parameters in which people who are interested in bikes operate in their hobby or profession? Or are you asking why professional racing puts guidelines around what types of bikes can participate?

You’re being disingenuous and down right annoying. By your logic why not just use a F-18 and win the race in 10 minutes? Stop being asinine.

Not sure if you honestly believe this or just trying to be "edgy" but because a motorcycle is not a bicycle.