I was looking for a wheelset for an upcoming build and found a perfect set at the Boise Bike Project. They had a matching set of Schwinn rims with tandem Bendix hub and heavy duty spokes. I looked at the stamping and I read "S2". So I bought them and took them home. The rust was mild on them and I knew they would clean up well. After taking a little steel wool, that 2 became a 7. Now I have a wheelset that I can't use unless I buy some new tires.