I would like to know If a frame would suit me for really long distance riding (100-200km). I have read about the stack to reach ratio, which for example for one of my bikes that is comfortable for me is 1.52. But most of what I find in the road/single-speed segment is way lower. I also have a bike that is not comfortable for long rides (Polo Williambsburg) but I can not get those measurements online. Both where professionaly fitted.
But I have no been able to find a table which classified those stack to reach ratios and in some places they say that is not an indicator for anything.
How can I measure a new frame without trying it (online) to know if it is adequate for me by just looking at the geometry charts?