I canceled the order on the advise of my bike shop tech and ordered some 27" x 1&1/4" polished alloy rims that will work with my stock Schwinn brakes and not change my ride geometry, AND allow me to to keep my new Schwalbe kevlar-strip tires & tubes.
The bike shop is going to notify me by text when they arrive. I will be upgrading Big Blue first.
The newer tires use a hook-bead seal and the old Schwinn rims don't support that, hence all the blowouts.
Hmmm. I wonder if you can get alloy rims chromed?? - Dan