Originally Posted by momoman

The stock rim’s internal width is listed as 13mm. Here’s some info from the Zizzo site with a chart showing tire size compatibility, but it doesn’t appear to indicate wider tires are compatible. Visually, it looks like 2.125” tires will clear the brake arms and the frame, however, the tires may have the lightbulb shape on the narrow rims. I’m actually looking into installing 2” or 2.125” tires on the stock wheels and rims for occasional rides in National parks or other sites with some dirt trails.

https://www.zizzobike.com/forum/technical-questions-2/liberte-rear-rim-width-only-1i 3mm