Size matters
The correct selection of tires for a particular car is very important and, in principle, we cannot afford to deviate from the exact instructions of the car manufacturer. The consequences of a bad landing can be manifested in the malfunction of the entire vehicle and affect driving safety.
One of the main criteria for choosing tires is their strictly defined size. Mismatched May 
result in incorrect information being sent to the ABS, ESP, ASR, TCS electronic security systems, changes in suspension geometry, steering or body damage.
“Finding the right size information is easy and can be verified by any rider. The easiest way is to check the size of the tires we currently ride. It is located on the side of the tire and always has the same format, for example, 195/65R15; where 195 is the width, 65 is the profile and 15 is the rim diameter,” says Jan Fronczak, Motointegrator.pl expert. “This method is only good when we are 100% sure that our car left the factory or from an authorized service center on these tires,” adds Jan Fronczak.
If we are not the first owner of the car, we must follow the principle of limited trust and check the tire size for purchase. In this case, too, everything is simple. This information is contained in the service book and in the instruction manual, and often on the factory sticker located in the niche of the driver's door, on the gas tank flap or in the trunk niche.
Most car manufacturers homologate multiple rim sizes for the same car model, and thus tires. Therefore, if we still have doubts about which tire size fits the car, we can contact an authorized dealer.
In addition to tire size, two other parameters are very important: speed and load capacity. For safety reasons, it is unacceptable to exceed these values, since this may have a direct impact on the change in the technical parameters of the tires, and in some cases on their mechanical damage.
When changing a set of tires, it is also worth checking the pressure level and the correct wheel balance so that they perform their role optimally in terms of safety and control of the car in difficult conditions.
