SCAG SCZII-61V-31FX Cheetah II Zero Turn Mower with 61" Velocity Plus Cutter Deck and Kawasaki FX921V Engine 31 HP. In your world, it pays to become more swift, agile and powerful. Make it a reality with the quick and precise Cheetah II™, a machine that devours jobs at a pace you’ve only dreamed of while delivering an unmatched quality-of-cut and incredibly smooth ride. With the Cheetah II, you’ll never be caught from behind.