Chinese ATV engine with two wheels and half of the rear frame and plastic, not sure what size it is, I have the carb for it just not in the photos, the guy I bought it from said it ran good, it just needs a wiring harness, battery, and gas tank to run again, also the carb needs to be reinstalled and the throttle hooked back up, I was going to use this for a project but ended up not having the time.