Originally Posted by
Fynn
So now I have even worse concerns. I have an aluminum frame mountain bike with over 25K miles. Maybe I should be more concerned about that. From what I am reading here, you can visually detect carbon imperfections but aluminum will drop you on the road at a whim.
Nope. Alloy frames will last forever under normal use. Alloy bike frames are unlikely to ever meet fatigue levels in normal every day riding. Its a tough and durable material. Airplanes are still built of it because no other material delivers such an incredible lightness to strength ratio.