The Coolster QG-210 dirt bike features the award winning 70cc air-cooled ZongShen Engine, one of China’s best 70cc motors for 3 consecutive years. The Coolster QG-210 is almost completely identical to the QG-213A, with the only notable difference being its 110cc engine. With thicker fork tubing and stiffer springs, the QG-210 excels in durability and comfort.