I am assuming you are talking the Goodyear front runner car tires. The narrowest I see with them is 2.5". I am not a fan of car tires on bikes under any circumstance, but that's just me.
I run the Avon Roadrider 90/90-21 which has a very similar width, but with far less touching the ground than the forementioned GY. The Avon MKII (or something like that) is offered a little narrower. However, like 55chevr said the speed rating is low.