... 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"x3.00-8,13"x5.00-6,4.80/4.00-8,etc.)pneumatic wheel(6"x2",8"x2 ... -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 ...