The Super Bronco 54 XP™ lawn tractor is built tough, with a powerful 25.0 HP* twin cylinder Kohler® 7000 series engine, a cast-iron front axle and durable, built in front bumper. The Super Bronco XP lawn tractor also features a foot-controlled hydrostatic transmission that gives you smooth, responsive control while the Soft Touch™ steering wheel and high-back seat provide added comfort while mowing even the largest of yards.