Can someone help me with my question? Does titanium weaken with use and age? I am thinking about buying an older (mid-90's) used ti road frameset, but don't know whether or not to 'trust' the bike and therefore am seeking your advice. I am a bigger rider, 100kg or 220lbs, who will be using it for a long day (smooth) rides in very hilly terrain, and therefore will be forced to put down some good torque on the bb area etc and don't want it or anything else to fail..If it is a quality frameset from a reputable builder should this be a concern or is it 99-100% as strong as it was 15 years ago? Thanks.