The GK-K90 is the only kids go kart passed our strict driving tests. It's Built with safety and fun in mind. Wonderful safety aspect of this go kart is that each racing style seat comes standard with its own harness seat belt and speed limiter. Rear disc brake provides sure and efficient stopping power in a variety of conditions for the kids. Smooth and torque 90cc air-cooled, four-stroke, single cylinder Engine produces superb reliable power for both the kids' recreational use. CDI ignition system ensures dependable starting and puts out consistent spark at all RPM for optimal engine performance. Electric Starting provides much easier control and handling, and gives the rider the great convenience in the event of a stall. Durable chain drive, which is really great. Chains are easy to repair and replace. The dual seat is a super gift!! The OUTSTANDING COMFORTABLE RACING STYLE SEATS design for maximum driving and passenger comfort for YEARS OF FUN. Steel frame is lightweight and features outstanding durability with superior rigidity for superb handling. High quality seat padding ensure you a roomy and comfortable riding experience.