Riding lawn mowers vary quite a bit from model to model. There are small rear-engine mowers for yards up to an acre and lawn tractors and zero-turn lawn mowers that will make quick work of larger jobs. Related Story How to Fertilize Your Lawn This SpringTightest Turning Radius Craftsman T2400K Turn Tight Riding Lawn Mower $2,899 Lowe's ProsCons Features at a Glance Type Lawn tractor Cutting Width 46 in. Lawn Mower FAQswith Expert Tony CarrickTrevor RaabHow do I know if I need a riding lawn mower? Rear engine lawn mowers and lawn tractors often reach speeds ranging from 4 to 6 mph.