Cybertronian Radial is a brand of tire used by numerous Transformers, most notably during their Alternators upgrades. Even though the toys were licensed car models, the toys didn't sport tires with real-life manufacturers' markings as initially intended; instead, they all sported tires branded "Cybertronian Radial". The most likely reason for this is that Hasbro and Takara would probably have had to acquire separate licenses from the tire manufacturers to use their trademarks on the toys: