Falken Azenis FK510 is a summer tyre made in total of 112 sizes, ranging from R17 to R17 - this particular dimension is R18, which means it fits to a 18 inch/457.2mm diameter wheel. 235/45 R18 is 30mm wider than the narrowest dimension (205) and 60mm narrower than the widest one (295). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (235mm), which results in 105.75mm sidewall height. In 235/45 R18, there is only one possible speed index for Falken Azenis FK510 - "Y", which is good for speeds up to 300 km/h. In 235/45 R18, Azenis FK510 usually competes against Advan Sport V107, which is a tyre from Yokohama with a rating of 59%, compared to 58% of the Falken in question. Latest test in 235/45 R18 was held by ACE in 2018, where Azenis FK510 received rating "Recommended" and finished on the 1. place. It was tested on a .
