Nokian Powerproof is a summer tyre made in total of 53 sizes, ranging from R17 to R17 - this particular dimension is R19, which means it fits to a 19 inch/482.6mm diameter wheel. 245/45 R19 is 40mm wider than the narrowest dimension (205) and 30mm narrower than the widest one (275). 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 R19, there is only one possible speed index for Nokian Powerproof - "Y", which is good for speeds up to 300 km/h. In 245/45 R19, Powerproof usually competes against Roadhawk, which is a tyre from Firestone with a rating of 59%, compared to 51% of the Nokian in question. Latest test in 245/45 R19 was held by AutoMotorSport in 2022, where Powerproof received rating "Good" and finished on the 6. place. It was tested on a Audi A6.
Relevant tyre tests in same or similiar dimension (245/45 R19)
AutoMotorSport Summer tyre test 2022 245/45 R19 good Ranked #6 of 10Securing the 6th place among 10 competitors, the Nokian Powerproof tire was recognized with a 'Good' rating, underlining its suitability for daily use across all summer weather conditions, with the only notable shortfalls arising during heavy rain. Testers praised the tire for its neutral to understeering behavior, which remained driver-active with reserves in wet conditions, making it spontaneous, precise, and easy to control in dry turns. However, they noted deficiencies in aquaplaning safety and reported a faint, singing noise during handling. A standout feature of the Nokian Powerproof was its dry steering response, where it performed exceptionally well, setting a benchmark in this discipline. This balance of characteristics makes it a commendable choice for a wide range of summer driving conditions, despite its vulnerabilities in extremely wet weather.