The Cub Cadet® Ultima Series ZT1 42 is a 42-inch zero-turn lawn mower with a 21.5 HP engine and an AeroForce™ fabricated deck. It is designed to provide a high-quality cut with few clumps and an even finish. The mower features dual hydrostatic transmissions for quick ground speeds, giving your yard a professional look. Its strong tubular steel frame has a fully e-coated corrosion defense system to protect against wear and tear.