Skateboards may offer a thrilling ride while moving downwards on the street, but they lack the power to keep up the same momentum on ascending tracks. Check out the 58-pound wheelboard dubbed “Motorized Wheelrider” that packs a two-stroke engine, generating 2HP, to move you at 20 mph on grades up to 15 degree.  Placing the rider on two slip-resistant footboards, which appears little awkward, located within ...