Speed Rating U

U

Speed symbol — max sustained speed200 km/h / 124 mph

At its rated load.

Nearby speed symbols

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Defined in UN vehicle regulation.

Where the U speed symbol is on the tyre

It is the single letter at the end, right after the load index. Here it is on an example 205/55R16 tyre.

U Speed symbol

Rated up to 200 km/h at its rated load.

More on speed symbol

TyreCalculator — Tyre Size Calculator & Comparison Enter a tyre size such as 265/65R17 to see its section width, profile, sidewall height, rim diameter, overall diameter, circumference and revolutions per kilometre. Add a second size to compare the two and check whether the swap fits, including the diameter difference, speedometer error and ground-clearance change. This tool needs JavaScript enabled.