My Airborne Zeppelin, bought used last year, is very light, stiff and fast and comfortable. I have an older steel frame road bike and the Zeppelin is stiffer but has a very similar feel to the ride. I have looked at new titanium bikes but just could not justify the price. I am very happy with the used Zeppelin and have about a third of the cost, including the changes I made, invested in it compared to entry level new titanium. See above pix.