The Morrison Rocket features a 140cc Briggs & Stratton engine on a 460mm (18″) durable steel chassis. The mulching attachment allows you to mow without a catcher and leaves a nice tidy finish. Cut, Catch & Mulch Powered by Briggs & Stratton 140cc OHV Series 500E RapidStart™ 4 stroke engine460mm (18″) steel chassis Unique twin blade system with a swingback feature to protect the crankshaft from damage if the mower should strike a solid object Front 200mm (8″) and Rear 200mm (8″) adjustable dual bearing wheels Comfortable upturned upper handle Reinforced lower handle for added strength Camlocks for quick release handle fold down HDPE Plastic Catcher Zone start for comfortable starting position