I just went with a little CA. I don't really expect to have to pull the wheels aprt a whole lot over the course of there use. Probably only one every couple of years. But i put just a few drops on to hold. For the sprocket covers I'm using some magnets to keep the covers in place. I can see taking off the sprockets more than taking the roadwheels apart. But a small and thin neodine magnet would work to hold the caps on. I also used them on the rear instead of the screws to hold the back of the upper hull on. I just put them together without the screw then used a little hot glue to attach. It works great.

Bill