The Simplicity Axion 24/50 is a zero-turn mower produced from 2007 to 2009 as part of the Axion Series. It features a 24 hp Briggs & Stratton 724cc 2-cylinder engine, hydrostatic transmission with infinite forward and reverse speeds, and a 50-inch mid-mount mower deck with electric lift. The mower has an open operator station and weighs 540 lbs. It was originally priced at $3,100 in 2007.