Giti Synergy E1 is a summer tyre made in total of 19 sizes, ranging from R14 to R14 - this particular dimension is R15, which means it fits to a 15 inch/381mm diameter wheel. This tyre profile of 60 means the sidewall height of the tyre is 60% of the tyre width (185mm), which results in 111mm sidewall height. In 185/60 R15, there is only one possible speed index for Giti Synergy E1 - "H", which is good for speeds up to 210 km/h. In 185/60 R15, Synergy E1 usually competes against Bravuris 5 HM, which is a tyre from Barum with a rating of 39%, compared to 0% of the Giti in question.