I have an Ibis that I bought in late '95, maybe around November or so. I need a new fork and was looking at getting a Vicious. The Vicious website recommends their 413mm fork for frames '96 and older and 50mm suspension adjusted frames. They recommend the 425mm fork for 63mm suspension adjusted frames. Here's my dilema, I thought my Ibis was spec'd for a 63mm travel fork. According to the Firstflightbikes website, my Ibis was spec'd for a Judy XC which I thought started off with 63mm of travel. So, which size fork do you think I should get?