Why we fit tyres in pairs
By Dan BezerTyre Advice20th March 2019
There are several reasons to have your tyres fitted in pairs, from safety, to balance and stability, to even wear. We believe it’s so important that we offer free fitting on two or more tyres.
Your tyres are a key element to maintaining balance and stability when driving. The front two tyres are fitted to the same axle on your vehicle, as are the rear set. It is ideal to replace all four tyres at the same time, but this might not be necessary if only one tyre needs to be changed, and it also depends on your vehicle’s tyre wear and drivetrain. In this situation experts advise that replacing two tyres on the same axle is better than changing just one to keep you safe on the road. For example, if you were to have one tyre with 4mm of tread on one side of the vehicle and a new tyre with 8mm tread on the other side, this would create an imbalance and an uneven, unstable drive. This could cause an unpredictable drive at best, to being uncontrollable in an emergency situation at worst. An exception to changing two tyres on the same axle instead of all four, would be on 4X4 vehicles. It is usually recommended that all four tyres are replaced together on a 4X4 to avoid the risk of permanent damage. Making sure that the tyres on each side of the axle are the same size and brand, with the same tread patterns and ratings is an important consideration. It is especially essential for the tyre size, load index and speed symbol to be in accordance with the car manufacturer’s specifications, as in many countries this is a legal requirement. Driving with a non-recommended mix of sizes, constructions and speed ratings can be dangerous and illegal too. Some vehicles are designed to have different sized tyres fitted to the front and rear axles – always refer to the manufacturer’s recommendations for these approved mix fitments. Although it’s not a legal requirement, it is also strongly recommended that you don’t mix summer, winter and all-season tyres. This is because the different treads and performance capabilities can affect the control of your vehicle.