... , horizontal, four-stroke, radiator Rated power: 15hp Rated speed: 2,000rpm Wheel tread: 800, 740, 640 and 580mm Ground clearance: 182mm Tires ... : 6.00 to 12 Forward: 1.54, 2.75, 4.51 ... Rotary tiller speed: 275/219rpm Net weight: 520kg Overall dimensions: 2,680 x 960 x 1,250 walking tractor JD-15