My Speedrides are folding bead 700x42, not the similar CX Speed 700x35 version. They measured about 39.5 new and have grown over time close to 41ish.

Tubeless for the Overide is just about done. Waiting for the beads to seal up. It was straight forward and just needed a nudge with the compressor. Never used these rims tubeless so cleaning and taping took some time. Gorilla tape didn't work. Went with Stans tape and Stans sealant. If this holds, I'll ride tomorrow. I hope the tubeless is an improvement overall. I like swapping tires between some wide Conti wide city slicks if all road, the Speedride the default mostly used, and a set of Nanos occasionally for all offroad. Tubeless makes that switching not worth the hassle.