Yokohama Advan Sport V103 is a summer tyre made in total of 40 sizes, ranging from R16 to R16 - this particular dimension is R19, which means it fits to a 19 inch/482.6mm diameter wheel. 255/40 R19 is 50mm wider than the narrowest dimension (205) and 10mm narrower than the widest one (265). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (255mm), which results in 102mm sidewall height. In 255/40 R19, there is only one possible speed index for Yokohama Advan Sport V103 - "Y", which is good for speeds up to 300 km/h. In 255/40 R19, Advan Sport V103 usually competes against , which is a tyre from with a rating of %, compared to 0% of the Yokohama in question.