Great bike, kids have just outgrown it. This is the big bike version with 21” front tire and 18” rear tire. Has upgraded Pro Taper handlebars, tusk hand guards, and $400 upgraded Pro Circuit complete exhaust system. The exhaust makes it a little louder than stock and more power. It has a brand new battery. Been well maintained with regular oil changes and clean air filters. I have extra air filter and oil filters for it as well as a brand new shifter.