Continental ContiWinterContact TS 830P SUV 285/45 R20

Continental ContiWinterContact TS 830P SUV is a winter tyre made in total of 26 sizes, ranging from R17 to R17 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 285/45 R20 is 60mm wider than the narrowest dimension (225) and 20mm narrower than the widest one (305). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (285mm), which results in 128.25mm sidewall height.