Rim Width to Tire Size Compatibility Chart
Check a tire width against the inner rim widths ETRTO allows.
This rim width to tire size calculator checks whether your planned tire is a practical match for your rim inner width. A good match supports the tire casing, keeps handling predictable, and reduces the chance of a tire shape that is too pinched or too squared off.
How to read the result
The compatibility band is a starting point, not a replacement for the tire and rim maker limits. If your result is near the edge, check both manufacturers. Hookless rims, high-pressure road tires, and very wide mountain tires deserve extra caution.
Before changing tire size
Compatibility is only one step. You also need enough frame and fork space, enough mud clearance, and a pressure range that works for your weight and terrain. Use this with the tire clearance checker, bike tire pressure calculator, and wheel circumference calculator.
Tubeless note
Tubeless setup can be more sensitive to rim and tire pairing. If you are setting up tubeless, check the tire bead standard, rim tape fit, and sealant amount with the tubeless sealant calculator.
