Formula Formula Trailer 235/75 R17.5

Formula Formula Trailer is a tyre made in total of 5 sizes, ranging from R17 to R17 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 235/75 R17.5 is 20mm wider than the narrowest dimension (215) and 10mm narrower than the widest one (245). This tyre profile of 75 means the sidewall height of the tyre is 75% of the tyre width (235mm), which results in 176.25mm sidewall height.