Originally Posted by
rsbob
Rust is real.
You have forgotten the Columbus XCR and Reynolds 931 and 921 stainless steels and before them the Reynolds 953 was dwarfing them in terms of tensile strenght exceeding 2000mpa . You can prevent rust in a classic steel by spraying rustol or antirust primer in the head tube seat tube as well as inside the bottom bracket. When a carbon frame breaks it is hardly repairable unless you know specialist but is very espensive , otherwise it becomes a disposable worthless product. Whereas with a steel, aluminium frame and titanium frame you can always have it rebrazed or rewelded.