Built for serious fun, the KMX Kart brings a radical new twist to cycling. Designed by aerospace engineers, the KMX delivers a unique riding experience thanks to its horizontal frame, seating position, low centre of gravity and rear wheel stability. Enjoy a smooth ride and easy maneuverability with a 20 Rear Mag wheel, 12 Front Mag wheels, heavy duty compound tyres, and a 7-speed Shimano chainset. It features a powder coated Hi Carbon steel box frame, front hub brakes and a rear V brake. The K Class can also be adjusted as you grow the sliding seat can be extended by 8 . It s also compatible with standard bike parts so you can customise to your heart s content.