Speed Rating
The speed rating is a letter code on the tyre sidewall indicating the maximum speed at which the tyre can safely operate under its rated load. Common ratings include T (190km/h), H (210km/h), V (240km/h), W (270km/h), and Y (300km/h). Fitting tyres with a speed rating lower than the vehicle manufacturer's specification is illegal in the UK, except for winter tyres under specific conditions.
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