THanks. I have no idea. The frame and fork were really inexpensive on ebay and the size seemed right. I really like the fit and finish of it. The headset is causing me issues. It's quit stiff when being turned and I can't figure out how to correct it. About to take it to the bike shop to see what they can do. I like it enough to where I might get another one. I'm on the hunt though to find one that will accept a 2.4 Ardent in the back, or the larger Ikon.