The Hustler Super Z™ is in a class by itself. Literally. The Industrial-Grade Super Z is built like a tank and rides like a thoroughbred - with a top speed of 24 kph. The new HyperDrive™ hydraulic system is engineered to run at higher psi levels than any other mower on the market. Its VX4™ deck technology delivers a clean cut and finish that complements its industrial muscle. The Super Z is backed by Hustler's longer Industrial-Grade warranty, not found on any other zero-turn mower. When you want the toughest, most capable mower, climb aboard the Super Z.