Kumho WinterCraft WP71 is a winter tyre made in total of 54 sizes, ranging from R16 to R16 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 225/45 R18 is 20mm wider than the narrowest dimension (205) and 50mm narrower than the widest one (275). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (225mm), which results in 101.25mm sidewall height. In 225/45 R18, there is only one possible speed index for Kumho WinterCraft WP71 - "V", which is good for speeds up to 240 km/h. In 225/45 R18, WinterCraft WP71 usually competes against WR Snowproof P, which is a tyre from Nokian with a rating of 62%, compared to 0% of the Kumho in question. Latest test in 225/45 R18 was held by AutoMotorSport in 2017, where WinterCraft WP71 received rating "Still recommended" and finished on the 9. place. It was tested on a BMW 4.
