I tore down my Superlight yesterday to inspect it for any cracks or damage. It still looks good but the bike as been through 4 years of very heavy use and I have had to replace every part on it except for the seatpost and stem at least once. No bike will last forever but how long should I expect this thing to last? I am worried that it will finally give way on my while tearing down the side of a mountain. I know no one has an answer for this just though y'all might be able to share some tales about old bikes.