If you’ve noticed the letters RSC printed on the sidewall of your tyre, you’re not alone — and understanding what it means can tell you a lot about your tyre’s safety and structure. RSC stands for Run-Flat System Component, a designation used by some manufacturers to identify run-flat tyres. This guide explains what RSC means, how it differs from other run-flat codes, and whether your vehicle is suitable for these tyres.
If you take a close look at the sidewall of your tyres, you will notice a series of printed letters, numbers, and codes. Each of these tell you something different about the tyre, with information relating to the size and construction of the tyre, its climate suitability, seasonal uses, and its age.
RSC is one such code that you may see on a tyre, that indicates a very specific feature. Keep reading for a definition on the RSC stamp and what it means.
What Does RSC Stand For?
RSC is one of the ways that run-flat tyres are distinguished, with the acronym standing for ‘Run-Flat System Component’.
Not Seen RSC Before?
The reason you might not have seen RSC before, even if you have run-flat tyres fixed to your vehicle, is that some manufacturers and tyre brands use their own unique references and markings. These include RTF, and DSST to name just two.
Benefits of RSC Tyres
RSC tyres are run-flat tyres, which means that they are designed to be driven through and despite of a puncture, for a set distance.
If you suffer a puncture on a run-flat tyre, the design means that the vehicle can keep on moving – owing to the durable structure which prevents the wheel from deflating. Typically, once a run-flat tyre has been punctured or damaged, it enables the driver to remain safely on the road until they can reach a nearby garage or mechanic.
It’s important to note here that run-flat tyres should only be driven a short distance, and at a reduced speed, to ensure optimum control and traction with the road surface.
