Mezzo wheels pretty well With only 2 wheels and tilting it. However like a brompton it is best upgraded to rollerblade wheels if pushing any distant or on anything other than a perfectly flat surface. Some people find that Brompton forward wheels catch on their heels when pedalling. I fitted some huge 120mm on my mezzo in the past.
Try to get clear wheels with red core.
Why?
As these dissipate the LED lights in all directions increasing visibility, safety and looks great.
All Mezzos as standard are under greared. Lower gears can be achieved by changing the front or rear gog set up. Simple,cheap and all standard parts.