The Simplicity Citation 21/48 is a zero-turn mower produced from 2006 to 2009 as part of the Citation Series by Simplicity, a part of Briggs & Stratton. It features a 21 horsepower Vanguard 627cc 2-cylinder gasoline engine, hydrostatic transmission with infinite forward and reverse speeds, and a 48 inch mid-mount mower deck. The mower has a wheelbase of 48 inches, weighs 970 lbs, and includes two-wheel drive with a two-post folding ROPS. It has a 6.5 gallon fuel tank and electric start. The mower is equipped with a mid PTO that is independent and uses an electric clutch. Tires are sized 13x5 front and 22x11 rear. Electrical system is 12 volts with a 340 CCA battery and negative ground.