I ran those GravelKings, though I think 50mm, on my Vado 5.0, and they are great tires. I was running them tubeless and had the pressure too high one day, and the rear tire blew of the rim going about 18 MPH. It was like a shotgun blast, scared the holy hell out of me! Luckily I got the bike stopped and there was no damage.
Those Speedrockers, are the easy to install and remove? I've been looking for a solution I can install easily if I'm expecting rain. The only thing I need protection from is rain coming vertically off the tire and into my face.