Graining occurs when strips of rubber are torn from a tyre and then immediately stick back onto the hot surface of that tyre. This creates an uneven, irregular surface that makes braking and cornering difficult while reducing grip and traction.

Graining typically occurs when the tyre is sliding laterally and is more common with the softer tyres. It is often a short-term problem, as the graining goes away once the tyre wears and becomes uniform again.

Andrew Burden

The author Kiwi F1 Fan