... ''X1.5'',2)6inch : 6''X2'',3)8inch : 8''X2.50-4,4)9inchi : 9''X3.50-4,5)10inch : 10''X3.50-4, 10''X3.00 ... -6, 13''x2.50-8, 13''x6.50-6,9)14inch : 14''x3.50-8, 14''x4.50-6,10)15inch ... ''x7.50-8,12)18inch : 18''x8.50-8,13)20inch : 20''x2.125'',14)26inch : 26''x1.75'', 26''x1 ... OEM/ODM services.More information please feel free contact us. 4 Inch bike tyre