A friend of mine has a pre occupation with mini bikes and one day decided to sell one of them because his kids weren't showing much interest. My son was the right age for a mini bike (I thought), so I purchased it as a grading gift for him. Showing no interest, it sat for a while when I decided to try it out...which led to a new engine, centrifugal clutch, custom sliding engine mounts, and a custom exhaust pipe. Maybe someday he'll want to take it for a ride.....