The Rival is the latest mower of the new Evolution series of mowers by Mean Green Mowers: With up to 7 hours of continuous mowing time, the choice of a 52 in. or 60 in. deck, speeds up to 12 MPH and horsepower comparable to a 36 HP gas mower, the Rival is sure to please most any mowing operators. In addition to the already exclusive patented electric zero-turning radius mower features by Mean Green, the Rival boasts an all-new hub drive system designed from heavy duty excavating equipment. The new patent pending deck lift system and battery/drive wheels arrangement provides the Rival with some of the best in class power and stability on slopes up to 20°.