Originally Posted by
HiYoSilver
Did you read any of those articles? Without stack and reach it doesn't help much, there are simply too many variables when all that matters are:
1. height of saddle above bb
2. horizontal offset of saddle to bb
3. reach to handlebars
4. vertical offset to handlebars
You can have all sorts of variety of seat tube angles, top tube lengths,
etc and yet have all 4 of those the same.
Hiyo, I think you're right for the full breadth of utility that Toto has in mind, a very full set of frame numbers is needed. But that poses a problem, of whether that info is available, or does it have to be measured? What should the site owner do with partial data submissions?
I would say design the site to handle the full breadth, including the items you asked for, but accept all the inputs you get, regardless of completeness. Hope that they'll become "finished" somehow later on.
Road Fan