Tyre Number Meanings Explained In Full

The string on your sidewall looks cryptic but follows international standards. Reading it lets you shop online with confidence and spot dangerous mismatches.

Typical passenger example

205/55R16 91V: section width 205 mm, aspect ratio 55, radial construction, 16-inch rim, load index 91, speed V.

Extra codes

M+S = mud and snow capability claim (not a substitute for alpine winters). Mountain/snowflake = severe snow performance test passed. DOT + 4 digits = manufacture date week/year.

Directional and asymmetric

Arrows or “outside” labels must be fitted correctly or wet grip and noise suffer.