Is an Alignment Needed After Changing Wheel or Tyre Size?

Changing wheel or tyre size affects both the look and the handling of the car. Some checks are needed after such a change.

Does changing wheels affect the alignment?

Changing only the wheels and tyres does not directly change the wheel angles. However, the offset of the new wheels and the outer diameter of the tyres can affect steering feel and wheel position. After the change, checking the alignment values and balancing the wheels is recommended.

Points to consider

• The tyre's outer diameter should be close to the original size; otherwise the speedometer and driver assistance systems are affected.
• The wheel offset must be suitable and the tyre must not rub against the wheel arch or suspension.
• If the sizes go beyond those in the vehicle registration, legal compliance should be checked.

After suspension changes

After fitting lowering springs, coilovers or replacing suspension parts, camber and toe values change. A wheel alignment must be carried out in this case.