PART A —U.K.WET GRIP REQUIREMENTS
Class C1 tyres shall meet the following requirements:
| Category of use | Wet grip index (G) |
|---|---|
| snow tyre with a speed symbol (‘Q’ or below, excluding ‘H’) indicating a maximum permissible speed not greater than 160 km/h | ≥ 0,9 |
| snow tyre with a speed symbol (‘R’ and above, including ‘H’) indicating a maximum permissible speed greater than 160 km/h | ≥ 1,0 |
| normal (road type) tyre | ≥ 1,1 |