Why Do Tyres Make or Break a Vehicle’s MOT Result?

Why Do Tyres Make or Break a Vehicle’s MOT Result?

For drivers in the UK, the annual test is something of a dreaded event. But the truth is, the majority of failures during the test aren’t due to any kind of mysterious mechanical catastrophe. They’re often down to something much simpler, and tyres are one of the biggest offenders.

Indeed, tyre and wheel problems have consistently been among the top causes of test failures in the UK. The tyres are subjected to the stresses of acceleration, braking, and turning, not to mention the peculiarities of the British weather, from torrential rain to unexpected frost. But understanding the connection between the tyres and the test is the first step in acing the test with flying colours and staying safe.

What the MOT Tester Is Looking for

When the car is on the ramp, the MOT tester follows a strict checklist to ensure it meets minimum safety requirements. This is a detailed process and covers several aspects.

The first and most obvious one is the depth of the tyre’s treads. The minimum depth should be 1.6 mm and should cover the central three-quarters of the tyre, which is roughly its entire circumference. The tester will use a device to measure this, and if any point on the tyre falls below this depth, the car fails immediately. The tyre should also have its pattern prominently displayed; otherwise, it is considered bald and dangerous.

The tester also checks for cuts, bulges, and lumps on the tyre and its sidewall. These indicate internal damage and may cause a blowout while travelling at speed.

Finally, the tester verifies that the tyres on each axle are the same size and type and that they are the correct size for the car. Mixing tyre types and sizes on the same axle can cause handling problems and lead to immediate failure.

Why Tyre Health is About More Than Passing a Test

The aim is to pass the MOT Aberdeen, but the health of the tyres is about something far more serious: your life and the lives of other motorists on the road. When driving on the motorway at high speeds, that small piece of rubber is literally all that is stopping you from disaster.

During wet conditions, the health of tyres is even more crucial. The tread is designed to channel rainwater away from the rubber. The rubber then grips the road. However, as the tread wears away, it does not grip the road as well. This means that there is a risk of aquaplaning, which occurs when the tyre literally rides on a cushion of water. This affects steering and braking.

Tyre condition also increases the stopping distance. Tests have shown that if a car is travelling at 50 mph on a wet road, it may require an additional 14 meters to stop when the tyres have 3 mm of tread remaining. If the tread is down to 1.6 mm, the minimum allowed by law, then it will take even longer.

Buying Tyres: Making the Right Choice

Every car needs good tyres. However, replacing them is often daunting. There are several options to consider, but they do not have to be complicated. The first rule of buying tyres Aberdeen is to check the car handbook to determine the tyre size and speed rating the car requires. This ensures they get tyres designed to handle the car’s weight and speed.

There are many options:

  • Main Dealerships: They offer convenience and use genuine parts. However, they are the most expensive ones.
  • High Street Chains: They offer good service and often run promotions. However, their service varies across locations.
  • Independent Garages: They offer excellent service and good value for money. They also offer professional recommendations.
  • Online Retailers: One can purchase tyres online and get them fitted at a local garage. This is often the cheapest way to purchase tyres. One can easily compare prices and read reviews.

When comparing prices, always check what is included in the overall cost. The extras can quickly add up.

Seasonal Considerations

In the UK, the weather is unpredictable. A cold, wet November evening is quite different from a hot, sunny day in July.

Most cars have summer tyres as standard. The all-season tyres are also becoming increasingly popular. Summer tyres are designed for warmer weather and perform well in both wet and dry conditions, provided the temperature is above 7 degrees centigrade.

All-season tyres are also an excellent choice, as they use a different compound and tread design that perform well in colder, wetter, and even snowy conditions without wearing out too quickly.

Conclusion

Although the MOT is a legal requirement, the driver’s duty to their tyres is ongoing, as they are key to safety, performance, and fuel efficiency. Understanding the test process, the importance of tyre condition, and the key to selecting the right tyre can help drivers stay safe, legal, and in control behind the wheel, regardless of the weather or conditions. Give tyres a quick check regularly. It takes five minutes, but it may save more than the cost of an MOT failure.