... . easy maintenance JINMA 504E Four Wheel Tractors Technical Parameters Tractor Basic ParametersModel HHJM-454E HHJM-504E Drive Type 4WD Overall Dimensions ... Radius(m) 4.3 12.4-28 TyreForward2.22,3.57,5.80,7.61,10.97,14.62,23.82,31 ... ,17.98,23.60 13.6-28 TyreForward2.43,3.57,5.80,7.61,10.97,16.01,26.09,34 ... .18Reverse1.84,2.70,4.38,5.75,8.24,12.11,19.69,25.85Engine Specifications ...