Like new 20-Inch Huffy Green Machine 3-Wheel Tricycle. The super-charged twin-tube Power+ frame is motocross-styled and ready to deliver 180-degree heart-pounding spins and smooth slides. Dual-stick steering with convenient green grips is easy to manoeuvre. The Huffy Green Machine RT uses a combination of the coaster brake and the freewheel for full spin and slide control. Super-slick rear wheels with green trim help the fun while green sidewalls add extra strength to the front pneumatic tire. The robust steel frame comes with a fully adjustable seat tank. Sure the legendary ride is a good fit for a variety of riders is simple to make.