From the cancelled CR110 replica project I had some 18" alloy rims left over, so I decided to use them on the C110.
Found a set of original S90 spokes, old style spoke pattern, crossed over 6 (instead of the normal 2 or 4)

And this is what a wheel looks like when it's done.

Bridgestone AC01 racing tyre, will probably wear out pretty quickly with roaduse, but I do like skinny tires and there is no other option which looks and performes good.
The wheels look a bit flashy now, compare to the rest of the bike which is a little rusty and dirty, but soon it will be taken appart for painting.