For most bicycle cyclists, the size of the inner tube and the outer tube has been clear, but if talk about the width of the rim and the width of the tire, there may be many people who are unclear. Why the rim inner width is also related to the tire width? Isn't it the same size?

What problems or dangers will arise if the improper tire width is applied to your own wheelset? Is there a relevant industry standard to tell us how wide tire fit rim width?

The true size of the tire is tied to the rim width. If your tire is narrow compared to the rim, you risk pinch flatting and damage to the wide rim. If your tire is too wide compared to the rim, you risk burping/excess tire roll, and poor stability.

Here is our general recommendation on the tire width range that works best with a given internal rim width.

Road Rim

MTB Rim