well it cost me 920 bucks for two china made 4 wheelers. i just got cheap ones for now till he learns how to ride. he is only 5 years old so i figue start'em young. mine is a 150cc. i had it up to 50 mph last night and about 35-40 with my girl freind on the back. his is a 50cc. mine is standard his is throttle and go. here are a few pics.