What depth are tyre wear indicators?
1.6mm
The easiest way to check your tyre tread’s legal is to look out for tread wear indicators. These are usually small bars, about 5mm wide, built into the base of the tyre’s main grooves. If the tyre tread is level with the top of the wear indicator, it means your tyres have reached the legal limit of 1.6mm.
How do I check my tyre tread 20p?
Simply place a 20p coin into the main tread grooves of your tyre. If the outer band of the 20p coin is obscured when it is inserted, then your tread is above the legal limit.
How would you check your tyre tread depth?
A tyre’s tread depth can be measured by using the handy pop-out tyre tread depth gauge attached to this leaflet (Figure 5). Always measure in the middle of the tyre surface, and not at the edges. 3. Tyres also have a ‘tread wear indicator’ block set into them at a depth of 1.6mm.
Are my tyres illegal?
Place a 20p coin into the main tread grooves of your tyre. If you can’t see the raised edge around the coin, your tyre’s tread is likely greater than 1.6mm and, therefore, legal. If, on the other hand, the outer band is visible when inserted, your tyre could be unsafe and require professional inspection.
Should tyres be replaced at 3mm?
One of the key conclusions of the research was: “Replace your tyres soon after the tread depth reaches 3mm. Always change them once the tread has worn down to 2mm or less at any point.” Several vehicle manufacturers also recommend 3mm as the standard changeover point.
Should I change tyres at 3.5 mm?
There is a reasonable consensus from most motoring forums on how long 3mm of tyre tread will last. If you choose to change the tyres once they have reached 3mm tread depth then, on average, you will be changing the tyres every couple of years.
Is there a way to check the tread depth of a tire?
By regularly checking your tire tread depth, you can be sure when it’s time to replace your tires. Below are a few easy ways to check your tread. If you’re looking for a fast, simple way to check your tire tread depth, the penny tire test is the way to go.
What do you need to know about tread depth?
What is Tread Depth? Tread depth is a vertical measurement from the top of the tire’s rubber to the bottom of the tire’s deepest grooves. As you drive on your tires, the rubber that makes up the tread — and the very thing that gives you traction — wears down. Over time, your tires will become less effective at gripping the road.
What’s the legal tread depth for a New Zealand tyre?
It’s a simple life hack to easily check whether your tread depth is too low. The minimum legal tread depth is 1.5mm. To check your tyre’s tread depth, place a New Zealand 20c coin into the tread of your tyre.
How does a quarter tire tread test work?
Quarter Tire Tread Test Similar to the penny tire test, the quarter test can show you how much tread you have remaining on your tires. Specifically, the quarter test will show you if your tread depth has worn to or below 4/32nds of an inch.