I recently discovered my back tire is either not seated correctly, out of balance, or maybe out of round. I did a burnout at my buddies shop and he was the one that told me my tire was hopping. I first thought the tire is not seated correctly. After re-seating the tire 3 times I don't think that is the issue. When I spin the tire you can see it go up and down. I can't imagine I can use something like slime and balance it. It's a small scooter tire, cheapo from china and I think it maybe out of round. I am thinking I will replace it, but with what? It's for a motovox setup for drag racing. I originally went with the scooter tire because I really didn't think it required a slick. I think I am ready to go with a slick or something close, but I don't want another shitty tire. Suggestions?