Our customers at Megatyre, Browns Bay, North Shore, Auckland, often ask us if their tyres are likely to comply with Warrant of Fitness regulations; the main considerations for wof compliance being:
– That all puncture repairs comply with regulations with no illegal string repairs, no sidewall repairs and no repairs too close to the sidewall.
– Can I mix tyres?
Four brand new high quality tyres will always be the best way to go, but you can mix and match tyres on an axle provided both tyres have matching specifications in terms of wof regulations.
For example, both tyres on the same axle must have the same style/type of pattern. e.g. 2 directionals or 2 non directionals. You cannot have a directional tyre on one side and a non directional tyre on the other.
Also, the load ratings must be within 2 numbers of the tyre on the other side of any given axle. E.g. if the existing tyre has a load rating of 82, you can fit a tyre of any load rating ranging from 80 to 84 to the other side of the axle. Wof regulations permit you to have, for example, 2 directional tyres at the front and 2 asymmetric tyres at the rear but the 2 different tyre pattern tyres must never be on the same axle.
That snow tyres can only be fitted as a set of 4 and that the tread depth must be 4 mm or higher. They can not be mixed with standard road tyres.
– Minimum tyre tread depths
The minimum legal tread depth limit is 1.5 mm for car and van tyres. However, many agencies change their tyres at 3mm and we would recommend replacing your tyres at or before 2mm. (note: Tyre performance in wet weather deteriorates when tread depth is below 4 mm).
Megatyre, Browns Bay, North Shore, Auckland. www.megatyre.co.nz