The billy goat ae401h is a dedicated lawn aerator for domestic or commercial use. The ae401h has a 19 inch working width with 24 removable tines. The water weight positioned directly over the tines allows for a better aeration depth.this billy goat lawn aerator is self propelled so provides the user with that extra drive to power it along. Simple to use drive and tine engagement.powered by a 118cc honda engine with 'o ring' style chain for better lubrication and a longer life. The drive chains are also easily adjustable which makes servicing and transport convenient and simple.featuresoutboard drive wheelsfolding handles adjustable without tools for easy transport and storageproprietary water tankreplaceable tine starslift and lock tine disengagementmachine tilts up for servicingspecificationsengine honda 4 stroke 118ccdrive yes, self propelledworking width 19 inchtines 24 replaceabletine pattern 12cm x 18cmcoring tines 1.6cm x 8.9cmwheels semi pneumaticlength 145cm 57 width 74cm 29 height 133cm 52.5 weight 110kg 242 lb drywarranty 1 year