Is it better to change tires at a 4S shop or an external repair shop?

[DeMiguel]

Changing tires can be done at either a 4S shop or an external repair shop. Generally, 4S shops only provide original equipment (OE) tires, so you can purchase original tires there. On the other hand, repair shops usually offer more affordable prices. Whether you choose a 4S shop or a repair shop, it's important to be cautious when selecting tires for replacement. It's best to choose a highly reputable shop to avoid unnecessary losses. When replacing tires, it's advisable to use the same type of tire. The specifications of a car's tubeless tire include not only size parameters but also usage parameters, which indicate the tire's maximum safe speed and load capacity through codes. For example, a tubeless tire marked as P165/70R14 81T means: P indicates it's a passenger car tire, with a tread width of 165mm, an aspect ratio of 70, radial construction (R), a rim diameter of 14 inches, a maximum load capacity of 462 kg (code 81), and a maximum safe speed of 190 km/h (code T). When selecting tires, it's also important to avoid mixing different types of tires. For instance, do not combine tires suitable for off-road vehicles with those for regular cars, or mix directional sports car tires with standard tires.