Zipp 303s bought in 2002. Rear wheel has a brand rear rim. Front rim only 1 year old. Upgraded ti skewers included. Tufo elite tire still on front wheel.
Front rim was replaced under warrantee a year ago. I damaged the rear wheel a few weeks ago and invested $250 to have it replaced by Zipp. I just got it back and have not even mounted a tire on it yet.