The Billy Goat AE401H self propelled petrol lawn aerator is a step into the future generation of wheeled aerators eliminating the convention and cumberson centre wheel and centre drum removing the effect of wear vibration and subsequent damage outboard wheels also stopping centre ...The Billy Goat AE401H self propelled petrol lawn aerator is a step into the future generation of wheeled aerators eliminating the convention and cumberson centre wheel and centre drum removing the effect of wear vibration and subsequent damage outboard wheels also stopping centre wheel slip and abuse from ramp loading. With foldable handles 118 CC Honda engine and proprietary water tank the self propelled Billy Goat aerator allows for a quality machine which is easy to use and will last.