Why Replace Tyres In Axle Pairs?

Why do we recommend that tyres of the same type are fitted on the same axle? Read our article why you should replace tyres in axle pairs…

Why Replace Tyres In Axle Pairs?

If you need to replace a tyre you will need to decide whether to replace just that one or to replace both tyres on the same axle. This will ensure that the tread depth and performance characteristics of both tyres are the same. If the tyre remaining on the axle has 4mm or less tread, it is always best to replace both tyres to ensure that braking and handling are balanced.

The reasons for this are:

  • Tyres of different tread depths on the same axle can have an imbalanced grip which could mean your car veers to one side when the brakes are applied.
  • Tyre construction varies significantly, even with the same manufacturer. Fitting different patterns or brands on a single axle may lead to under or oversteer when cornering.
  • All tyres on a car should be the same seasonal type, either summer, winter or all season.

Newest tyres should be fitted to the rear axle

If you are only replacing two tyres on a vehicle then the newer tyres should be fitted on the rear axle. Having newer tyres with more tread on the rear provides better handling and wet grip to avoid oversteer on wet surfaces. This is the same whether the vehicle is front-wheel drive or rear-wheel drive.

Fitting the new tyres to the rear of the vehicle ensures that the vehicle handles in a similar fashion to before the tyre change as the optimum grip is on the tyres at the rear.

There are some exceptions:

  • Where front and rear tyres are intended to have different size specifications
  • Where a vehicle is designed for directional tyres at the front and asymmetric tyres at the rear

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