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📘 How does a tire grip the road?

See how rubber, load, tread, pressure, water, and slip create or reduce traction.

lessons

~10 min

to learn

🔬 Science

subject

Adults

level

Start the course →

What you’ll learn

Contact patch
Rubber deformation
Normal load
Slip
Cornering
Tread
Inflation
Road surface
Combined forces
The complete grip

Questions this course answers

Where are braking and cornering forces transmitted?

The small rubber-pavement contact patch carries the road forces.

Why do tread grooves help on wet roads?

Grooves and pavement texture help move water away and preserve rubber-pavement contact.

What happens when a wheel locks or spins?

Large sustained slip generally reduces useful control compared with controlled rolling slip.

Why does tire pressure matter?

Inflation controls how the tire supports load and deforms at the contact patch.

What is the combined traction budget?

Longitudinal and lateral tire forces share the available friction capability.

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