Some competitive models have plastic gears or none at all.
Lawn-Boy's six inch front wheels are two inches shorter than the rear wheels. This combination helps bury and hide the clippings into the lawn, resulting in quality mulching performance . This provides periodic lubrication, which reduces wear on the transmission output shaft. Some competitive models use a friction drive system with many more moving parts that result in increased maintenance. Lawn-Boy's Easy Stride transmission allows infinite mowing speeds up to 4 miles per hour.