D100 Series

• The D100 series includes eight models, and these models have engines that produce between 17.5 and 25 hp. The largest model is the D170 lawn tractor, which has a 54-inch cutting width. It has a 15-inch seat with lumbar support. Its dimensions are 75.3 inches long by 67 inches wide by 46.5 inches high, and it weighs 552 lbs.
  
  

X500 Series

• The X500 series has five models, and the cutting widths of these models range from 48 to 54 inches. All feature a traction-assist pedal, which provides additional power to the drive wheels to improve overall traction. The X534 and X540 models have hydraulic steering, and all models feature a V-twin engine. You receive either a 15-inch or 16-inch high back seat, and you can adjust the seat into up to 15 different positions. All models also come with headlights. You receive a 4-year or 500-hour warranty on these models.
  
  

X300 Series

• The X300 series includes 11 different mower models with cutting widths between 38 and 54 inches wide. Depending on the model, you receive a rear discharge, side discharge or mulching deck. All models come with a 15-inch high seat that you can adjust into 15 different positions. All models feature V-twin engines and the Edge Xtra deck, which is made from one sheet of steel. The fuel tank is 3 inches wide and is located on the left fender for easy access. You receive a 4-year or 300-hour warranty on these lawn mowers.
  
  

X700 Series

• The X700 series includes 12 models of riding lawn mowers, and these mowers come with a 4-year or 700-hour warranty. These models come with either a iTorque Power Systems V-twin gasoline engine or a Yanmar three-cylinder diesel engine. All have headlights and come with the Quik-Tatch bracket on the front, which helps keep your riding mower from tipping. The Xtra Deck mower decks range in size from 48 to 62 inches.
  
  

EZtrak

• John Deere offers three series of EZtrak ZTR mowers: Z200, Z400 and Z600. These mowers feature two control levers on either side of the seat. Depending on the model, you receive a two- or four-year warranty on these mowers. The fastest series is the Z600, which includes the Z645 and Z655 models. These models move at speeds up to 9 mph, and they both come with V-twin engines.