Tyre guides

Plain-English articles on UK tyre rules, sizes and safety. Each one links to the tools so you can check your own tyres.

How to read a tyre sidewall: every number and letter explainedA plain-English guide to the markings on a UK car tyre: size, load index, speed rating, DOT date code, XL, M+S, run-flat and more, with worked examples.9 November 2026