When it comes to tires, understanding their functionality can save you from unexpected surprises. Run-flat tires have been around for a while, but not everyone is familiar with them. In this article, we will discuss how to identify a run-flat tire.
Look for the Label
One of the easiest ways to identify a run-flat tire is to look for the label on the sidewall of the tire. This label typically has the letters “RF” or “RFT” on it, indicating that the tire is a run-flat tire. Additionally, some manufacturers will indicate that their tires are run-flat by labeling them with the word “run-flat” or “SSR” (self-supporting run-flat).

Manufacturer’s Markings and Codes
Here are some manufacturer codes that can be used to identify if you have run-flat tires.
Bridgestone – RFT/ROF/RSC (Run Flat Tires/Run On Flat/Run-Flat System) Component)
Continental – SSR (Self-Supporting Run Flat)
Dunlop – DSST (Dunlop Self-Supporting Tire) or DORT (Dunlop Off-Road Tire)
Goodyear – ROF or EMT (Run On Flat/Extended Mobility Technology)
Pirelli–RSC (Run Flat System Component)
Yokohama – ZP (Zero Pressure)
Michelin – ZP or ZPS (Zero Pressure or Zero Pressure System)
Other brands – ZP or ZPS (Zero Pressure or Zero Pressure System)

Check your Car’s Manual
Another easy method to identify a run-flat tire is to check your car’s manual. The manual will typically have information about the type of tires your car needs, and if it requires run-flat tires, it will be specified in the manual.

If you are still struggling to work out whether you have a Run-flat tire then, it’s probably a good idea to head over to a mechanic. Most experts will be able to confirm after a quick glance and it’s unlikely that they will charge you for checking.