Glossary
Rim width
The interior width of the wheel measured between the flanges. Tire manufacturers specify a range of approved rim widths for each tire size. Using a rim outside the approved range affects tire shape, capacity, and handling.
Check the tire manufacturer's approved rim width range before mounting a tire on a wheel of uncertain width.
Real-World Use
A maintenance shop buying used wheels checks the rim width markings and compares them against the tire manufacturer's approved range for the tire size being installed.
What to Pair It With
Read this term with the full tire sidewall, vehicle rating information, manufacturer documentation, and the actual condition of the tire.
This site is for general information only. It does not replace professional tire service, DOT compliance advice, tire manufacturer instructions, vehicle manufacturer recommendations, or fleet policy.