Tyre Labelling

Wet Grip

The basis of assessment and classification for wet grip on the tyre label is absolute stopping distance when driving at 80kph.


Wet grip is a critical safety feature and relates to the tyres ability to stop a vehicle quickly on wet roads and can be expressed in terms of stopping distance.


The categories are "A" to "G", with "D" and "G" not being used.


The difference between each category means an increase or decrease in stopping distance of between one to two car lengths (between 3 and 6 metres).