Experimenting with wide rims and gravel tyres. 700×42 resolute on a 35mm rim.
Actually doesn’t look too bad.
The real reason is the only spare wheels I have are for an MTB and I was hoping the sidewalks didn’t stick out further than the tread! Which they don’t & the tread still has a round profile so the knobbles still work. Too narrow a tire on a too wide rim causes flattening of the tread which is horrible when leaning over in corners & the exposed sidewall is vulnerable to sharp bits of trail
UKGRAVELCO 