Originally Posted by
thumpism
Your bikes might be old enough to have 40 spoke rear wheels. My Sportses are slightly newer and have 36. If you cut the hubs out it might be difficult to find more 40 hole rims.
The Sun CR-18 is a frequently used upgrade rim in 40 hole for this application if you're planning on the original 26 X 1 3/8 size.
https://www.universalcycles.com/shop...s.php?id=62891
I'd also second the try cleaning up first. You'd be surprised how well some old chrome cleans up. In fact pitting on the brake surfaces might actually be an upgrade in braking performance