Kawasaki has gone all futuristic with its new concept bike, simply named J. Independent designers have long been cooking up concepts like these, but this is probably the first time a major manufacturer has lent weight to the futuristic idea. Kawasaki J Concept has three wheels, two at the front and one big wheel at the rear. Two wheels at the front means that the conventional handlebar gets replaced in favor of two controllers, each individually connected to a wheel.