How many tires should be changed at a time, 2 or 4 at a time?

Replacing car tires is a problem that every car owner will encounter, but many people are not clear about the choice of the number of tires to be replaced. Should I change 4 at a time, or only 2? Today, SHARGGE will talk about this issue in detail from the aspects of safety, economy, vehicle type, etc., hoping to help everyone.

First of all, the conclusion:
If you have sufficient budget, it is best to change 4 tires at a time to ensure the safety and stability of driving, but if your budget is limited and only two tires are seriously worn, you can change 2 first, but it is best to replace the new tires to the rear wheels to reduce the risk of slipping on wet roads.
What are the benefits of changing 4 tires at a time?
1. Better control and balance
Replacing four tires at the same time can ensure the consistency of the car's grip, especially in emergency braking or turning, to better control the vehicle. If new and old tires are mixed, the grip of the new tires may be inconsistent with that of the old tires, thereby increasing the risk of skidding.

2. Improve driving safety
If four tires are replaced at the same time, the degree of wear and pattern will be consistent, and driving safety will not be affected by different tire conditions, especially on slippery roads.
3. Extend the life of tires
Replacing four tires at a time ensures that the four wheels are evenly stressed, reduces unbalanced wear, and extends the service life of each tire, which will be more cost-effective in the long run.

What are the benefits of only changing 2 tires?
1. Economical
For car owners with limited budgets, replacing the two most worn tires first can save some expenses. Generally speaking, changing tires is not cheap, so if your budget is not much, changing only two is also a compromise.
2. Meet daily driving needs
If your car is driven on city roads most of the time and the road conditions are good, then only changing two tires can also meet daily driving needs. But remember, in this case, the tires on the drive wheels should be replaced first, and the two replaced tires must be on the same axle

How to decide whether to change 4 or 2?
1. Tire wear degree
If the wear degree of the four tires is similar and they are almost at the limit of use, it is best to replace all four tires at one time to ensure driving safety. But if only two tires are severely worn and the other two tires are in good condition, then only the two severely worn tires can be replaced, but remember to install the new tires on the rear wheels.
2. The drive type of the car
The wear difference between front-wheel drive and rear-wheel drive vehicles is large. The front wheels of front-wheel drive vehicles wear faster, while the rear wheels of rear-wheel drive vehicles wear faster; and because all tires of four-wheel drive vehicles are involved in driving, they usually wear the same. Therefore, front-wheel drive or rear-wheel drive vehicles can choose to replace them in batches, and it is best to replace four tires at a time for four-wheel drive vehicles.
3. Driving environment and driving habits
For cars that often drive on highways, rural roads or muddy roads, Lungu recommends replacing all four tires together to ensure the stability and grip of the vehicle; but if you usually drive mainly on urban roads and drive relatively smoothly, replacing only two severely worn tires can also meet daily needs.

What should we pay attention to?
1. Replace the drive wheels first
The drive wheels (front or rear wheels) of the car wear faster because they have to bear the weight of the car body and are responsible for driving. If you only replace two tires, you should replace the tires on the drive wheels first.
2. Install the new tire on the rear wheel
If you only replace two tires, you must install the new tire on the rear wheel and adjust the old rear wheel with less wear to the front wheel. This is because the rear wheel bears the balance of the car. If the rear wheel has insufficient grip, it is more likely to have a tail swing phenomenon in sudden braking or on slippery roads.
3. Coaxial tires must be consistent
If you choose to replace two tires, remember to make sure that the two coaxial tires (i.e. front or rear wheels) are consistent. It is best to have the same brand, pattern, and specifications to avoid uneven grip and cause the vehicle to lose control.
4. Regular inspection and maintenance
Regularly check the tire pressure and tread depth to ensure that the tires are running in the best condition. At the same time, the tires can be swapped front and back, which can balance the wear and extend the service life.