And here is what DT Swiss has to say:
When you head into the unknown, the HX 531 with its 30mm internal width is the perfect choice. With an ideal position in the middle of the strength, to weight, to width range, it works with many tire sizes and is the ideal choice for all eMTB’s meant to be ridden on proper MTB terrain.
- 30mm internal rim width
- Presta valve
- Weight: 555g