... extra resistant tread rubber compound.3 base rubber with steel bead ring reinforced with nylon fabrics up to the sidewall for severe ... 50-10,7.00-9,21*8-9,7.00-12,23*9-10,7.00-15,8.15-15,27 ... *10-12,8.25-12,250-15,8.25-15,9.00-20,11 ... .00-20 ,12.00-24,14.00-20,18.00-25,20.50 ... 2*5*10,151/2*6*10,16*41/2*12,16*5*101/2,16*6*101/2,16*7 ... 22*8*16,22*9*16,22*10*16, 28*12*22