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 gripGrip is the magic that holds the car on the road as it accelerates, turns and brakes at extreme levels.... There's more... and tractionTraction is the adhesive friction between the tyres and the track that allows the car to accelerate as the power... There's more....
Graining typically occurs when the tyre is sliding laterally and is more common with the softer tyres
Today's F1 cars are running 18-inch wheels (up from 13 inches in recent years) with the widths unchanged - 305mm... There's more.... It is often a short-term problem, as the graining goes away once the tyre wears and becomes uniform again.
