Just my 2 cents ,but plastic air hose is dot approved and we all know how that stuff gets in about 5 years of heat ,vibration and who knows what else.
No rating tells me its unlimited as far as speed is concerned,I have heard nothing but bad about these types of tires on the street,low mileage ,bad handling and funny wear,not to mention the fact a bicycle tire has better stoping power The front tires do most of the stopping work,high horsepower ,big rear tires and fast acceleration mixed with bad turning and bad braking,seems awful to me,but they sure look cool!!