Troy-Bilt, 21", 3-N-1, Self Propelled Lawn Mower, 160 cc OHC Honda Engine With ACS Starting System, 21" Steel Tri-Action Deck, Front Wheel Drive With Variable Speed Transmission, Integrated Deck Wash System, Rear Bag/Side Discharge/Mulch Capable, Mulch Ready, Rear Bag & Side Discharge Chute Included, 8" Front & 11" Rear Wheels, Dual Lever Height Adjustment, Adjustable Ergonomic Handle, Fully Assembled, For Replacement Blade Use TV #131-144. This Troy-Bilt XP Self-Propelled Mower delivers clean, even, clump-free, single-pass cuts. A dependable 160cc Honda GV160 engine offers the power and performance you're looking for.