23HP from a 50CC? I don't buy that at all. Their method of proving it must have been miles off.
Well, it was 70cc really. Polini Evo top end (nikasil lining, one piston ring), kevlar reeds, MHR exhaust, full MHR transmission (variator, clutch, final gears, even the belt), 28mm Mikuni flatslide carb, modified ignition to remove unnecessary coils (lights and battery), etc. Basically it was a race ped for the road.
It was pretty much the same engine as this:
And yes, it was impossible to keep the front end down like the one above.
Granted 23bhp may have been a bit optimistic but that's the number the cops gave me right before they nabbed it so that was the number I used to brag
Then again, let's not forget that Holland is a country where 70cc scooter racing is an actual thing.