Nothing wrong with 10 year old Kona's, My 94 Explosif is still going strong. The ahead headset is still available in the Uk, so may have been fitted a lot more recent as a replacement for the original fitment. Back to The "Hei Hei", A superb frame that a mate of mine built up in 97 into a superb bike. If you are Hard enough, well just a bit hard due to the give in a titanium frame, this is the ideal frame to set up with rigid forks. Not many appeared in the U.K. due to the cost, but can almost be deamed as one of the "Classic" bike frames.