◾ 79.9 cc 2-stroke gas engine ◾ Large top-mounted 2-stage filter with tool-less access ◾ Carbon fiber frame & fan case for light weight and high strength ◾ 91 mm Posi-loc™ pipes for maximum air flow ◾ Patented wear ring for increased durability ◾ Vented backpack system provides cooling air for hot weather use ◾ Heavy-duty straps for all day comfort