Speed Rating (Y)

(Y)

Speed symbol — max sustained speed300 km/h / 186 mph

At its rated load. The brackets mean above 300 km/h, not up to it. It is written round the whole service description on a ZR casing — 275/35ZR19 (100Y) — and how far above is the tyre manufacturer's to state, not something a table can.

Nearby speed symbols

››››

Defined in UN vehicle regulation.

Where the (Y) 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.

Touch a part of the sidewall above.

Speed Rating (Y)

Where the (Y) speed symbol is on the tyre

Also moulded on the wall