The 4-stroke air-cooled engine surpasses virtually any other mini bike on the market. This deluxe-sized mini bike effortlessly accommodates kids, teens, and adults up to 165 lbs. This mini bike is suitable for both kids and adults which ensures a reliable and comfortable outdoor entertainment for the whole family Stability is important with Low-pressure tires provide soft, smooth and stability even on rugged terrain. In addition, rear disc brake allows for reliable stopping Kids dirt bike has 4 stroke engine with 40CC/1.4hp fully automatic chain transmission system providing your kids with plenty of muscle through the trails all day with a max speed of 18 mph with just 0.32-gallon gas (#91) Kids dirt bike has 4 stroke engine with 40CC/1.4hp fully automatic chain transmission system providing your kids with plenty of muscle through the trails all day with a max speed of 18 mph with just 0.32-gallon gas (#91) Built with a rugged, proven clutch and a solid, sturdy metal frame, this heavy-duty machine will withstand years of fun on the trail so you can go kick some dirt Built with a rugged, proven clutch and a solid, sturdy metal frame, this heavy-duty machine will withstand years of fun on the trail so you can go kick some dirt EPA-approved, means the kid's dirt bike will not cause unreasonable adverse effects on users' health under the instruction manual, and it's environmentally friendly, while it has low noise EPA-approved, means the kid's dirt bike will not cause unreasonable adverse effects on users' health under the instruction manual, and it's environmentally friendly, while it has low noise