Found a video with 2 guys on busa's were racing. They said they were the fastest 60 inch bikes around. Then they said they were 100 % street legal with license plates and insurance... how ever these bikes were slammed with built turbo charged 450-500 HP motors. Can anyone tell me what class this would have been? Is it still a class? It really interested me because it wasn't to far away from a factory looking bike. No bars and wasn't stretched out 2 feet. Any help would be appreciated thanks!