Study topic
Tyres and minimum tread depth in Ireland
Tyres are your only contact with the road, so the theory test checks that you know the legal requirements and how to keep them safe.
Key facts to remember
- ◆ The minimum legal tread depth for car tyres in Ireland is 1.6 mm across the central three-quarters.
- ◆ Under-inflated tyres wear quickly, increase fuel use and can overheat.
- ◆ Over-inflated tyres reduce grip and give a harsher, less stable ride.
- ◆ Check tyre pressures when the tyres are cold, including the spare.
- ◆ Worn or damaged tyres greatly increase stopping distances and the risk of a blowout.