I'm not going to be like my friend and run tires that resemble the tires from a $50 Walmart mountain bike, and have my idea of fun be sliding around and laughing at how much of a skidmark I can make because of my crappy treads. I want something that actually hooks up on pavement and metal half pipes, and I'm not going to be riding on mountain bike trails or sandy motocross tracks. Going to make trails in my backyard, but they are going to be packed in pretty well.