Semperit Speed-Grip 5 is a winter tyre made in total of 92 sizes, ranging from R14 to R14 - this particular dimension is R17, which means it fits to a 17 inch/431.8mm diameter wheel. 225/50 R17 is 60mm wider than the narrowest dimension (165) and 50mm narrower than the widest one (275). This tyre profile of 50 means the sidewall height of the tyre is 50% of the tyre width (225mm), which results in 112.5mm sidewall height. In 225/50 R17, there are 2 possible speed indexes for Semperit Speed-Grip 5 - "H","V", which are good for speeds up to 210, 240 km/h. In 225/50 R17, Speed-Grip 5 usually competes against Polaris 5, which is a tyre from Barum with a rating of 63%, compared to 67% of the Semperit in question.
Autobild Winter tyre test 2023 225/45 R18 satisfactory Ranked #16 of 20The Semperit Speed-Grip 5 secured the 16th position out of 20 competitors, earning a final rating of 'Satisfactory.' It stood out for its impressive winter capabilities and good handling on dry surfaces, alongside a remarkably high mileage. However, its performance was compromised by inadequate lateral grip on wet surfaces and extended braking distances on dry roads. This blend of strengths and weaknesses provides a nuanced perspective on its overall winter utility and driving safety.