Quads are amazing things they can race they can go on the road and go threw water
road bikes are cool as well you ca drive a quad with a full driving licence you do not have to wear a helmet on the road but I would sugest that you would. There are lots of makes there are yamaha,honda,suzuki,rapter and much more. if you want to buy any of these quads just go onto a website like www.quads forsale.com