[quote=VitaVitaAR]
Strictly speaking, um, none of the Riders we have are cyborgs.But anyway, um... holding off on the crazy stuff where the characters who are meant to not know about it yet is a good idea. Since the plot needs them not to know for a little while longer.
[/quote]

I don't know much about Kamen Rider beyond what I read about the original rider, and what I read told me that all of the riders were Cyborgs. And anyway, Kyzan's Ultimatrix does have a Human function.