JonnyHK 

Are you sure?

I've seen plenty of carbon and fibreglass (rowing and sailing equipment) that is stored 100% outdoors that is not great after 5 years. Grey, brittle, and about as close to the mythical carbon-assplosion that we like to joke about.

Admittedly my low end of 5 years is for a poorly looked after bike that is stored in the sun (OK, not a likely scenario), but the experience and science is there. After 5 years you'll want to replace that bike and no one would buy it from you. Therefore = dead.

A couple of friends have very early carbon bikes, but both have had failures. Luckily they are the lugged type that can be re-bonded (an Alan and a Look), but it goes to show that after 20 years glues can break down.

I'm sure folks will still be riding well cared for bikes in 20+ years, but your going to have to resurrect a very much zombie thread to tell us about it.