Strategy · Updated for 2026
F1 tyre graining explained
The rough rubber deposits created when a sliding tyre tears its own surface.
Quick answer
Graining occurs when a tyre slides, tears small pieces from its tread and picks them back up, leaving an uneven surface that reduces the contact quality and grip.
01
How it begins
When the tread surface cannot match the demanded force, it shears across the track. Hot rubber rolls away and can reattach to the tyre.
02
What the driver feels
The car loses predictable grip and may slide more, which generates yet more surface damage if the driver cannot manage the phase.
03
Graining versus wear
Graining is a surface condition, not simply the tyre becoming thinner. In some circumstances the rough layer clears and performance recovers.