According to recent statistics released by Applus, the company that oversees the National Car Test in Ireland poor tyre condition is now the leading cause of vehicles failing the NCT.

The three most common reasons for failure related to tyre issues were as follows:

  • Tread depth of tyre below the legal limit of 1.6mm.
  • Dangerous level of damage to a tyre (cuts/bulges etc)
  • Mismatched tyres on the same axle (e.g. tyres not the correct size or type for the vehicle)

It is also worth noting that all tyres have a date stamp on them which indicates the date of manufacture. This is also checked in the NCT. The recommendations of the RSA and most tyre manufacturers are that tyres should not be more than six years old. Being older than this will not constitute a fail but it will be noted in the NCT test report to make the motorist aware of the potential danger of older tyres on their vehicle.

Other top failure items were headlamp aim and stop lamps.

There is a long list of checks made to tyres by NCT staff, please see National Car Test Manual 2014 for the full list and specifications required for your tyres to pass the test.

At Adamstown Tyres, our dedicated and highly trained staff offer a free “NCT Tyre Check” on all our customers’ vehicles to ensure that these easily avoided problems are not the cause of your vehicles NCT failure.

Please see our Tyre Safety section for more information.


Our Top 5 tips for passing the NCT


  • Only buy tyres from a reputable retailer- this will ensure the tyres meet the minimum EU safety standards required for your tyres. Not only will this ensure you have the correct tyres for your vehicle, it also means that the tyres on your car are safe. We can check your tyres free of charge with no obligation to buy as we believe safe tyres save lives.


  • Ensure the tread depth of your vehicles tyres is at an acceptable level (minimum is 1.6mm), not only will this cause your vehicle to fail it is also hugely unsafe as the treads in the tyres allow water to pass between the tyres and the road- if these grooves aren’t there it will cause your car to skid and slide in wet weather.


  • Ensure your wheels are aligned correctly, everyday bumps like potholes or mounting a kerb can throw off the alignment of your tyres causing them to wear unevenly. Please see our Wheel Alignment Section for more information.


  • Don’t forget about the lights! Making sure your vehicles lights are correctly focused and all bulbs are working correctly. Please see our Light Focusing Section for more information.


  • Remember not all damage to tyres is easily visible; tyres may have damage on the inside that will only be seen when on a car lift. It’s always worthwhile calling in and having your tyres checked by our staff if you aren’t sure. All our staff are highly trained and happy to help!