Cub Cadet RZT S 46
We nicknamed the Cub "the Robot" for its precise movement. In some respects it's a traditional zero-turn, its drivetrain consisting of twin Hydro-Gear transaxles powering each rear wheel. Each transaxle is a hydraulic masterpiece. Power from the engine spins a fanlike impeller inside the transaxle, moving hydraulic fluid to power a gear-and-axle assembly. But unlike traditional lever-controlled zero-turn mowers, the Cub uses a system it calls Synchro Steer: steering wheel, plus pedals for forward and reverse. We liked the setup, which allows for the easy handling of a zero-turn but the steady, predictable feel of a tractor.
Synchro Steer consists of a geared steering linkage at the front wheels, with control rods reaching back to each transmission. As you steer, the rods activate valves, sending fluid through the transmissions. Turning the steering wheel all the way around stops one of the rear wheels, and the machine pivots on that wheel, which even spins momentarily backward. The result of this elegant engineering is fewer divots and an effortless way to reverse. The machine is also easy to use on bumps, hills, and damp grass. With a swing set, a fire pit, and other obstacles, we appreciated the Cub's maneuverability.
Horsepower: 23 • Top speed: 7 mph • Fastest time to cut our test patch: 30 minutes • Deck: 46-inch, stamped 12-gauge • Weight: 565 pounds