Is Wheel Balancing and Four-Wheel Alignment Necessary When Changing Car Tires?
2 Answers
Wheel balancing is required when replacing tires. If wheel balancing is not performed, the tire's weight distribution will not align on a central axis during rotation, causing the wheels to wobble from side to side, which in turn leads to vibrations in the car body and steering wheel. Relevant parameters for changing rims: 1. Center Bore (CB): Refers to the size of the rim's center hole. Although rims with different center bore sizes from the original can be installed using adapters, it is not recommended for safety reasons. 2. Pitch Circle Diameter (PCD): This value should match the original specifications. For example, a rim with a PCD of 5x120mm means it has five lug bolts forming a circle with a diameter of 120mm. 3. Offset (OFFSET): Also known as the ET value. A positive offset means the mounting surface is outside the centerline, while a negative offset means it is inside. Passenger cars generally have a positive offset, and this value significantly affects driving stability and cornering traction.
When it comes to changing car tires, I believe wheel balancing is absolutely necessary. If new tires aren't balanced after installation, you'll experience steering wheel vibration and unstable vehicle handling at high speeds, which not only affects driving comfort but can also lead to premature tire wear. Wheel alignment, however, isn't required every time unless you notice the car pulling to one side, uneven tire wear patterns, or if there's been previous collision damage. Tire replacement itself doesn't alter suspension geometry, so balancing alone suffices for routine maintenance. With over a decade of driving experience, I always insist on balancing with every tire change - it's a simple, essential procedure that uses small lead weights clipped to the wheel rim to adjust weight distribution, ensuring peace of mind and preventing future complications.