Dedicated winter tires will never be superfluous.
Have a look at this video showing how much faster winter tires stop on ice:
You really have to watch the video to appreciate the difference, but here's the punchline: It takes more than twice as long for the all-weather tire to stop on ice than the studded Hakkapalita:
All the tires tested are Nokians considered great for their class and all are Mountain Snowflake rated. The all-season tires are like lightweights fighting against a heavyweight. Fighting in the wrong class.
These are the tires tested in the video:
Note the Mountain Snowflake rating on the tires that, again, take twice as long to stop:
https://www.nokiantyres.com/winter-tyres/nokian-wr-a4/
https://www.nokiantyres.com/all-weather-tyres/nokian-weatherproof/
That's from 25mph. I'd love to see that test from 50mph and with all-season and high-performance all-season tires too.
Have a look at this video showing how much faster winter tires stop on ice:
You really have to watch the video to appreciate the difference, but here's the punchline: It takes more than twice as long for the all-weather tire to stop on ice than the studded Hakkapalita:
All the tires tested are Nokians considered great for their class and all are Mountain Snowflake rated. The all-season tires are like lightweights fighting against a heavyweight. Fighting in the wrong class.
These are the tires tested in the video:
Note the Mountain Snowflake rating on the tires that, again, take twice as long to stop:
https://www.nokiantyres.com/winter-tyres/nokian-wr-a4/
https://www.nokiantyres.com/all-weather-tyres/nokian-weatherproof/
That's from 25mph. I'd love to see that test from 50mph and with all-season and high-performance all-season tires too.