I have a 2001 Quasi with a 2002 seat tower. I have been very happy with the bike and Titus service. I have had a few issues with the seat tower and the rockers. But this was related to my weight. I weigh about 240 pounds with all of my gear. I did mange to crack the seat tower at the junction of the seat tube and down tube (one factor in this may have been a too short seat post). Titus replaced seat tower at no charge. Also because of the heavier sping on the shock, clearance between the rockers was an issue also. The spring was rubbing on the rockers. Titus replaced rockers and provided spacers, at no cost, to alleviate the problem. It may not be the most elegant solution, but so far, (5 months) it has been effective. Allan has recommend trying the new Manitou Swinger 4. This would eliminate the need for the spacers. The main frame and rear triangle have been problem free. Even with these minor problems, I would not hesitate to buy another Titus product. I have full confidence in the frame.