Check the sidewall of your tyre for a sequence like 205/55 R16 91V. Make sure to read these details carefully for accurate information. If the markings on your tyre's sidewall are worn off or hard to read, try these steps:

1. The correct tyre specifications are usually listed in your vehicle's user manual
2. Look for a sticker on the inside of the driver’s door frame or the fuel cap cover. It often contains tyre size and pressure information.
3. Visit a tyre specialist or your local garage. They can inspect your vehicle and recommend the correct size and rating.