When maximum productivity, durability and cut quality are your priorities, the new Exmark Lazer Z Diesel zero-turn mowers are the right choice. They make quick work of the largest, toughest jobs and raise the bar for cut quality, operator comfort, fuel efficiency and ease of handling. When equipped with the new 144-inch UltraCut Flex Wing cutting deck, the Lazer Z Diesel can mow 11.5 acres per hour, making it the most productive mower Exmark has built. Powered by a cutting-edge Yanmar diesel engine, large drive tires allow you to reach ground speeds up to 12.5 MPH with the 96" deck. The Lazer Z Diesel is also available with 60- or 72-inch UltraCut cutting decks or the 96-inch UltraCut Flex wing deck. Delivering a high-quality cut, the flex wings on the 96-inch and 144-inch decks pivot 20-degrees up and 15-degrees down on sloping terrain. The 144-inch cutting makes the Lazer Z Diesel the largest zero-turn mower in the market.