The reason I was asking about these rims was I found a set of Tandem wheels on Ebay that had these rims laced to Shimano Hubs. I bought them for a really low price. I was looking for a second set of wheels to use on our Trek T1000.
These wheels look brand new, supposedly they had only 200 miles on them. I mounted a set of Continental GP4000s 700x25mm and put on a small cassette for use on faster flat centuries. So far these are excellent. We used them on a century ride yesterday and we were able to average 19mph. We hit a massive pothole yesterday that I couldn't avoid due to other riders and traffic , I was sure we would blow a tire or two or bend a rim but the rims stayed perfectly true. I think these are pretty durable.