The Wheelsurf! The Brazilian-made Wheelsurf is one of the most distinctive vehicles on the planet -- a US$2500 single-wheeled show stopper ride-inside conveyance. Riding the Wheelsurf is not for those seeking transport alone as it has no conventional steering mechanism and requires adept throttle control. The throttle and the brake are located on the rigid handlebars and steering is done by shifting your position to the inside of the corner. Too much throttle and the inner body, with you on it, starts to rotate backwards. Back off the throttle to slow down and you need to lean backwards so you don't rotate forwards within the wheel. When you first sit on the seat inside the 1.70 metre diameter Wheelsurf the circular steel frame of the Wheelsurf is all around you and you can feel the weight distribution in places you don't find it on any other conveyance. It's not all concentrated underneath you like on a motorcycle and this is something that takes a bit of getting accustomed to. In some ways, it's like learning to balance all over again. The Wheelsurf consists of an inner and an outer frame. The inner frame has three small wheels that make contact with the outer frame. The outer frame is the actual rotating wheel and has a solid rubber tire. The rider sits inside the inner frame that also contains the engine, clutch, propulsion mechanism and fuel tank. The engine is a Stihl 55 cc two-stroke single cylinder gas engine with one speed and a centrifugal clutch. Before riding, the driver positions himself inside the wheel and starts the engine by pulling on a cord - just as with a lawnmower or chainsaw - indeed, the motor is derived from chainsaw motor. Getting away from standstill with the Wheelsurf is where you need the most practice. From standstill you rev up the engine until the centrifugal clutch grips onto the outer wheel. Once you've mastered the characteristics of the engine, weight distribution, body balancing and throttle, you can ride away slowly and in control.