Table of contents:
245/40 R20 Nokian Powerproof variants
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Nokian Powerproof is a summer tyre made in total of 53 sizes, ranging from R17 to R17 - this particular dimension is R20, which means it fits to a 20 inch/508mm diameter wheel. 245/40 R20 is 40mm wider than the narrowest dimension (205) and 30mm narrower than the widest one (275). This tyre profile of 40 means the sidewall height of the tyre is 40% of the tyre width (245mm), which results in 98mm sidewall height. In 245/40 R20, there is only one possible speed index for Nokian Powerproof - "Y", which is good for speeds up to 300 km/h.
Nokian Powerproof is made in 53 sizes, starting from 205/50 R17 up to 275/45 R20.
Similar tires
Nokian Powerproof in tyre tests
Relevant tyre tests in same or similiar dimension (245/40 R20)
AutoMotorSport Summer tyre test 2022 245/45 R19
good
Ranked #6 of 10
Securing 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.
good
Ranked #6 of 10
Securing 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.
| Name | Wet | Dry | Enviromental impact | ||||
|---|---|---|---|---|---|---|---|
| Best values in test | 9,0 | 9,7 | 9,4 | ||||
| Nokian Powerproof | 7,6 | 8,0 | 7,3 | ||||
| Show test details | |||||||
| Name | Wet | Dry | Running costs | ||||
|---|---|---|---|---|---|---|---|
| Best values in test | 1 | 1- | 1 | ||||
| Nokian Powerproof | 1- | 2+ | 2- | ||||
| Show test details | |||||||
| Name | Stopping distance on dry | Stopping distance on wet | |||||
|---|---|---|---|---|---|---|---|
| Best values in test | 32,1 | 28,7 | |||||
| Nokian Powerproof | 32,9 | 29,1 | |||||
| Show test details | |||||||
245/40 R20 - Best summer tyres (according to tests)
245/40 R20 is found on 14 vehicles:
