Originally Posted by
masi61
Understandable point of view... like you are being subjected to a longer top tube. But if the head tube is angled back as well, the top tube would still be the same. I think frames with less acute angles, say 72 degrees parallel will have a more "relaxed" ride than say a dedicated criterium frame with 74 degree angles. The 72 degree frame would give all day comfort, possibly at the expense of feeling a little sluggish to rider inputs. The more upright frame would be the opposite, really quick to rider inputs but maybe a little fatiguing for all day jaunts.
Seat angle, head angle are only part of it, the top tube length and fork rake and resulting trail numbers, bottom bracket height (or drop below the wheel axle centerline) and chainstay length will all have a say in how a bike could be described. Some dimensions are independent, some will cluster as a group.
Your reference point(s); bikes that you have ridden for a decent period of time and riding style and use all play a part.