Before buying the Lynskey in 2013, the previous new bike I purchased was in 1985, that was my main bike, I had others, but that's the one I rode the most and put on over 150,000 miles on it over 24 years, that bike is still rideable. The only reason I bought the Lynskey was because I had heard so much about how good of a ride a TI bike has, and with a new back surgery I wanted the most comfortable bike I could find, and that Lynskey is even better riding than steel bikes I have. I would not have purchased another road bike had it not been for the back surgery, I would have ridden the Trek forever. Now I will ride the Lynskey most of the time and I expect it to last till I die, I'm 65 now, so maybe another 50 years? LOL!!

But I do believe that a TI frame can last forever excluding crashes, so all one would ever have to do it is replace parts as they break, or once problems developed with the components to go through and replace all the components at the same time. The Trek I have uses Suntour Superbe components, I've never had to replace anything yet with those components, but they don't make bike parts like the Suntour did anymore, so it may be unreasonable to expect original components to last over 150,000 miles anymore. By the way, the Trek was purchased as a frame and fork due to crashing out a previous bike, I transferred most of my components over to the Trek and bought some additional Suntour components to fill in gaps; that explains why if you look up the 660 specs they don't match because I didn't buy it as a ready to ride bike.