The Wheel Horse A-100 is a lawn tractor produced from 1976 to 1977 by Wheel Horse in South Bend, Indiana, USA. It features a 10 hp Briggs & Stratton 399cc 1-cylinder gasoline engine, a 3-speed friction disc transmission with 3 forward and 1 reverse gears, and two-wheel drive with manual steering. The tractor has a wheelbase of 42.5 inches, weighs 405 lbs, and rides on 13x6.50-6 front and 18x9.50-8 rear tires. Electrical system is 12 volts negative ground with a 24 AH battery. Attachments include 36" mid-mount mower decks and a 42" front-mount blade.