Tyre size fitment guide

Use our guide to understand where your tyre width, tyre profile, Radial, load index, wheel diameter and speed rating is located on the tyre sidewall.

Radial Tyres
Radial is a specific design of tyre where the sidewall and tread functions as two independent features. The layers run radially across the tyre. Advantages of radial tyres include flexible sidewalls, reduced fuel consumption due to less rolling resistance and a softer ride due to layout of the tyre’s plies as well as the flex in the sidewalls.

Tubeless Tyres | Run flat tyre markings explained
Tyre manufacturers use their own system for marking run flat tyres, resulting in different abbreviations appearing on the tyre’s sidewall, depending on the tyre brand.

Tubeless Tyres
Tubeless refers to ‘run flat’ tyres. Normally a car is supported by the air in the tyres where the tyre collapses when punctured. Run flat tyres have reinforced sidewalls which temporarily hold up the weight of your vehicle when getting a puncture. This allows the vehicle to drive on the flat tyre in order to get to a place of safety or your nearest fitment centre. The distance and maximum speed you are able to drive on a flat tubeless tyre depends on the tyre brand and tread pattern.

Run flat tyre symbols and their meaning:

  • Dunlop: DSST (Dunlop Self-Supporting Technology)
  • Goodyear: EMT (Goodyear Extended Mobility Tyre)
  • Hankook: HRFS (Hankook RunFlat System)
  • BMW: RSC (Runflat System Component)
  • Pirelli: SSRF (Self-Supporting Run Flat)
  • Continental: SSR (Self-Supporting Runflat)
  • Michelin: ZP (Zero Pressure) or PAX (old run flat system)
  • Yokohama: ZPS (Zero Pressure System)