@marc2912 I use Skike wheels. In theory they’re perfect; they ride smoothly and take the edge off of the terrible roads I ride on. They’re small enough that you can still use regular skate trucks.
But they’re not ideal. They aren’t manufactured for use as esk8 wheels, so the drive wheel tires only last 120 miles or so. Also,the QA for them is not very good; once in a while I get a tube or a tire that wobbles a bit.
@psychotiller’s billet hubs weren’t available when I built my esk8, but they seem to be the best available now. That is assuming you want to use regular skate trucks and not move into mountainboard territory.