28 Jun 2018


If your warrant of fitness is due soon and you’re starting to sweat because you dunno if you’ll pass or not…you’re not alone. It can be a nerve wracking time wondering if your car is roadworthy or not! One of the things that will be checked thoroughly will be your tyres. Here’s what they’ll be assessed on…

No dodgy puncture repairs

If you’ve had a puncture repaired they’ll check it complies with regulations; this means no illegal string repairs, no sidewall repairs or repairs too close to the sidewall. 

A mix of tyre types

Obviously having four brand new tyres all the same is a surefire pass but it’s not essential. You don’t have to have four of the same brand and model of tyre on all four wheels. But what you must have is the same type of tyre; for example:

  • You cannot have two mud tyres and two all-terrain on the same vehicle
  • All tyres must be of the same construction (mixed steel ply, fabric radial ply, bias/cross ply, run-flat).
  • Load ratings must be within two numbers of the tyre on the other side of the axle; eg. if it’s 84 on one side, it must not be any higher than 86 or lower than 82 for the other tyre.
  • Tyres on the same axle must have matching tread patterns, eg. two-directional or two asymmetrical tread patterns, for example. You can’t have a directional and an asymmetrical on one axle.

Tyres on the right way round

Following on from that last point above, asymmetric tyres and directional tyres must be fitted facing a certain way. If they’re not, you won’t pass the WOF. As the name suggests, directional tyres have a tread pattern that goes a certain way and asymmetric tread patterns go one way on the outside of the tyre and the opposite on the inside so having them the wrong way round is no good.

Minimum tyre tread depths

The minimum legal depth is 1.5mm but it’s not a great idea to be rolling around on tyres that have worn down that far. Definitely, start shopping around when you get as low as 2mm; 3mm is even better because anything under 4mm starts to perform really poorly in wet conditions.

Some other fails

Having a space-saver or non-pneumatic tyre on.

An unidentifiable tyre with all its manufacturer/brand/model info removed.

Having on a tyre with studs, cleats, lugs or other gripping devices.

Having a tyre that is not compatible with the vehicle to which it is fitted, eg. one that says:

  • NHS (Not for Highway Service)
  • ADV’ (Agricultural Drawn Vehicle)

It’s really detailed, but here on the NZTA website you can find a full list of reasons your car tyres (and wheels) might not pass a WOF check. 

Get ready for your WOF

If your gut’s already telling you your tyres aren’t going to cut the mustard, we’ve got it covered. Choose your tyres from our range of sizes and quality brands and pay for them online, then hook up a time with us to come to you and fit them. Yep, we come to you when and where it suits. That’s why we’re called EASYtyre of course!

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