OK, I found the answer in the spec:Can I fit a Schwalbe Big Apple City Tyre (26 x 2.0, ETRTO: 55-559) or even 26 x 2.15 in the front end of Q45?
https://forum.cruzbike.com/threads/q-series-wheel-sizes.12894/
At the end you have my recent experience. Still didn't find the time to dish the wheel, but the answer is - yes, you can fit them, even wider ones if the wheel is properly centered.