our factory production inner tube and tyre flap all size. pls contact( zihairubber at gmail com.)400/450-12,450/500-12,500-8,600-9,650-10,600-12,700-12,550/560/600(175/185)-13,450/500-14,600/650(175/185)-14,650/700-15,650/700-15,750/825-15,750/825-15,450/500-16,550/600-/16,600/650-16,600/650-16,650/700-16,650/700-16,650/700-16,750-16,750-16,825-16, 825-16,900-16,650/700-20,750-20,750-20,750/825-20,900-20,1000-20,1100-20,8.3/9.5-20,8.3/9.5-24,28*9-15,12000-20,1400-20,1100-22,1200-24,1400-24,1600-24,17.5-25,20.5-25,23.5-25,26.5-25,12.-28,14.9-28