How to Read Tyre Sidewall Markings (Size, Load & Speed)
Decode 205/55 R16 91V and other markings so you order the correct replacement — essential for accurate London mobile fitting quotes.
Accurate quotes depend on accurate data. The sidewall shows size (e.g. 205/55 R16), load index (91) and speed rating (V). You will also see date codes, wear indicators and sometimes OE homologation marks. For a deeper dive into measurements, see our quote tool and cross-check with your door-frame placard.
Why this matters for London call-outs
Supplying the wrong run-flat or load rating wastes a journey in traffic — especially during peak hours on routes into central London. Always photograph the full sidewall if unsure.
Quick reference
- 205 — Section width (mm)
- 55 — Aspect ratio (% of width)
- R16 — Rim diameter (inches)
- 91 — Load index
- V — Speed rating
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