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Things to know about changing winter tyres

Model: (Various brands) Various
Part: Tires

Video tutorial

The video clearly addresses the technical and regulatory differences between M+S tyres and tyres with the 3PMSF symbol: The M+S marking (Mud+Snow) is a self-certification by the manufacturer and meets the minimum legal requirements to be considered a winter tyre in the UK. With this marking, the tyres are considered compliant with winter obligations, ensuring legality on winter roads, but do not guarantee actual performance on snow or ice. In fact, performance can be quite variable, as they do not require snow testing, which results in a braking distance 30% longer compared to a 3PMSF. Now, regarding the 3PMSF marking (snowflake): this indicates passing traction tests on snow, established by international standards; it is not a legal requirement, but guarantees superior performance tested under severe winter conditions.

The compound is soft, optimised for winter with sipes designed for traction on snow and temperatures below 7°C. In summary, M+S protects you from fines, while 3PMSF protects you on the road, offering significantly superior safety.


Posted on 15 June 2026 by ScegliAuto


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