Originally Posted by
mr_macgee
The only way to really know is to put it on an alignment table and accurately measure, 2nd best is to build the bike and ride it like others mention. If the front tire is close to the downtube like the way a track bike looks is another indicator, a road bike gap/overlap shouldn't look like a track bike.
I definitely agree with the jig approach. I couldn't find a local framebuilder who had bandwidth/interest & didn't want to go through a shipping/packing cycle. Building it up and riding it is good enough for me, but not objective enough for assurances to a buyer. I had a Tommaso I rode for a number of years, got in a couple of minor accidents that didn't seem any worse than some rash. But then several years after the last accident, I was stripping the bike down and found a classic underside of downtube bubble. But I never noticed anything wrong about the bike before that.
I actually almost threw this away a couple of times. It has been a slow recovery at my age and just tossing this frame is a lot easier than other alternatives, including selling it. I hardly need $100/$200 that it seems like it may go for and what I need even less is an ebay buyer feeling he has been misled or ripped off. So to be honest, I was hesitant about selling it w/the uncertainty that surrounds such a sale. But each time I went to throw it away, it just seemed such a shame for such a beautiful frame that may well be fine but even if not, may be salveagable, and even if not that, some wall hanging somewhere. I finally concluded I wouldn't ever just put it in the trash and I didn't have the energy to deal with the other options, so let someone else w/more energy/interest deal with it.
What has been interesting is some of the messages I've been getting from buyers/lookers. There is clearly a not insubstantial group of people who would like nothing more than to have a shot at a top end frame like this with their Park frame tools and the idea that this frame may be bent not only doesn't slow them down a whole lot, it is why they are interested in it. I may end up being the first guy in ebay history to have a frame returned to me, get abusive low feedback, because the frame isn't bent.