The Wheel Horse E-81 is a riding lawn mower produced from 1979 to 1983 as part of the E Series. It features an electric engine, a Peerless 724A belt-driven transmission with 5 forward and 1 reverse gear, and two-wheel drive with manual steering and disc brakes. The mower has a wheelbase of 41 inches, length of 54 inches, and weighs 390 lbs with the mower deck attached. It rides on 13x5.00-6 front and 15x6.00-6 rear lawn/turf tires. Electrical system includes 3 batteries at 12 volts and 90 AH capacity with negative ground. The mower comes equipped with a 32-inch mid-mount mower deck with 2 blades. It was built in South Bend, Indiana, USA, and originally sold for $1,230 in 1981.