Kumho Crugen HP91 285/55 R18

Kumho Crugen HP91 is a summer tyre made in total of 52 sizes, ranging from R16 to R16 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 285/55 R18 is 70mm wider than the narrowest dimension (215) and -10mm narrower than the widest one (275). This tyre profile of 55 means the sidewall height of the tyre is 55% of the tyre width (285mm), which results in 156.75mm sidewall height.