Engine manufacturers calculate torque and horse power at different RPM ranges. Kawasaki tends to be more conservative with their ratings than other manufacturers. I have a Scag Tiger Cub that I just repowered from a Briggs 26 HP ELS to a Briggs 30 HP Commercial Turf Series with Cyclonic Air Filtration. The original engine was having low compression in the L/H cylinder with 500 hours. The New 52"-61" Freedom Z with larger tires and more fuel capacity is an attractive machine. Bear in mind that there is a 52" Freedom Z and the New 52" Freedom Z, two somewhat different machines, know what you are looking at!!
Mad Mackie in CT