Semperit Speed-Life 3 245/45 R17

Semperit Speed-Life 3 is a summer tyre made in total of 118 sizes, ranging from R15 to R15 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 245/45 R17 is 80mm wider than the narrowest dimension (165) and 50mm narrower than the widest one (295). This tyre profile of 45 means the sidewall height of the tyre is 45% of the tyre width (245mm), which results in 110.25mm sidewall height. In 245/45 R17, Speed-Life 3 usually competes against Roadhawk, which is a tyre from Firestone with a rating of 60%, compared to 55% of the Semperit in question.