10 April 2026 1 min read how to read tyre size UK MOT how-to
read tyre sidewall markings (size, load speed) — uk mot quotes Mobile Tyres

How to Read Tyre Sidewall Markings (Size, Load & Speed) — UK MOT & Quotes

How to read tyre size and what do tyre numbers mean — essential for mobile tyre fitting near me quotes in London, Manchester, Birmingham, Scotland and the UK.

Accurate quotes for mobile tyre fitting depend on accurate data. The sidewall shows size (e.g. 205/55 R16), load index (91) and speed rating (V). People also ask: Where do I find the right tyre size? — on the sidewall and the manufacturer placard in the door shut. Wrong run-flat or load ratings waste a journey across Westminster, Manchester inner ring or Glasgow rush-hour traffic.

Quick reference

  • 205 — Section width (mm)
  • 55 — Aspect ratio (% of width)
  • R16 — Rim diameter (inches)
  • 91 — Load index
  • V — Speed rating

Why this matters for UK call-outs

Photograph the full sidewall if unsure, then use our quote tool. EVs and SUVs in Kingston, Sheffield or Edinburgh often use XL or specialist compounds — state the vehicle type when booking anywhere in the United Kingdom.

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