Tyre codeBelgium
Learn traffic rules with clear explanations and visual examples in our illustrated book, designed to make studying simple and engaging.
186. Tyre code
A tyre code is the series of letters and numbers marked on a tyre's sidewall that identifies important characteristics such as tyre width, aspect ratio, construction, wheel diameter, load capacity and speed rating. A typical example is 205/55 R16 91V.
Drivers should use tyres whose specifications are suitable for the vehicle. The required tyre sizes and ratings can normally be found in the vehicle handbook, certificate of conformity or other manufacturer information.
Wikimedia.org • F l a n k e r • CC BY
What tyre-code information is important in Belgium?
Important markings include the tyre size, construction type, load index and speed rating. These characteristics must be suitable for the vehicle and its approved technical specifications.
Are tyre codes checked during technical inspection in Belgium?
Yes. Tyre characteristics are part of the technical inspection. Depending on the applicable requirements, inspectors can check characteristics such as tyre size, construction, load capacity, approval marking and speed category.
Must tyres on the same axle have matching specifications in Belgium?
Yes. During technical inspection, tyres on the same axle must have compatible specifications. In particular, their dimensions and construction type must match according to the applicable inspection requirements.

Traffic rules
Belgium