Originally Posted by
adriano
no, any upslope up to about twenty degrees will be stiffer and lighter than level, not theoretically, in actuality.
That makes sense and even getting out the yardstick, as the closer to forming a 90* angle with the seat tube and or head tube the top tube is a shorter length. But what are we talking there, 1/4" of top tube ? Hard to measure or describe how much stiffer or what the feel translates to the road, but it's a "jnd" or so (just noticeable difference) ?