These were considered good rims back in the early '80's. I must have a bike with them. I hope I do. All tires in my fleet are wire bead, so no issues with hookless rims or even trying to remember which bikes have which configuration rim.

@dddd thanks for the info on that CST C-979D, 27 " x 1-3/8" tires.

@Chuckybb are you planning on building wheels with these rims?