Does Anyone Know About A Pocket Bike (the Mini Motorcycle)? If You Do Can You Tell Me About It?

I don't own one, but the neighbor boys have them and drive up and down the street on them, what I noticed is, they look really funny riding them and they have almost gotten hit on several occations, because the cars turning down the street do not see them right away, they are hidden because of cars parked on the street! So please, although they look like fun, be careful on it if you get one!

They are illegal in most streets, because they are a motorized vehicle that needs licensed but can't meet any safety standards and the riders are usually not licensed.  They can only be sold as 'off road vehicles' yet they don't work well on dirt.   So if you don't have a private track, they won't be much use.