Spark on John Deere 8 series under the bus 710/70R42 disk W23-42 at John Deere used bus 710/70R42 The researchers analyzed the system of tillage and came to the conclusion that the wheels of the tractor affect the yield. Researchers recommend the use of dual wheels of the tractor when tillage. Based on the results of scientific experiments, the suspension system of the heavy equipment for processing adversely affects the soil, increases its density, and the adsorption capacity decreases. As a consequence, the yield is reduced to 30%. The use of dual wheels of the tractor allows you to reduce the pressure on the soil, which reduces these effects to a minimum. The use of dual wheels of the tractor involves changing the gauge, increase the traction ability of the equipment, increasing the permeability and stability, for example, on wet soils. With such wheels increases the carrying capacity of the tractor, which allows to achieve high performance in the work. We are an official dealer of the world's manufacturers of wheels and tires and belts CARLISLE, MICHELIN, TRELLEBORG, FIRESTONE,TITAN Shipping transport companies throughout Russia.