Forward single speed self-propelled. Briggs and Stratton 625ex engine. 150cc. Auto choke. 22" cutting path. Deck wash. 3-in-1 bag, mulch and side discharge. 8" front tires and 12" rear wheels. 9 position height adjusters. Replacement blades for this mower: (Orgill sku 839.4330, 507.7904 and 125.4887).