... : PU foam tyre(6x2,2.50-4,3.00-4,3.50-6,3.50-4,3.50-5,4.00-6,13"x3.25-8,13"x3.00 ... 250-4,10"x3.50-4,13"x3.50-6,13"x3.00/3.50-8,13"x3.00-8,4.00-8,13"x4.00- ... 6,13"x5.00-6,12"3.50-5,3.50-7,14"x3.50-8, ... 16"x4.00-8,18"x6.50-8 ... ,etc)3.Rim: steel & plastic 4 ...