RonKZ650 wrote:
Flat is the only comfortable seat for long distance rides. Take my word.
Ummmm, thanks, but no thanks.
For some-odd thousands of years, saddles have been designed with contour-fitting features that spec out as being *anything* but flat. Otherwise, the Romans would have strapped a 2x4 to a horse's back and been done with it.
More recently, and in the realm of motorcycles, cop bikes of any variety and (gasp!) classic H-D saddles all the way back to the turn of the last century were designed with long distance riding in mind, and they're *anything* but flat.
Far from being a one-size or one-shape fits all kind of answer, the solutions are about as diverse as the kinds of asses there are to fit them.
Padding, contour and lumbar support are all items for consideration. Beyond that is seating position - handlebar and footrest placement can be equally as if not more important in overall comfort on long hauls.
...Any seats that sit you in a position you can't move around will not work for long distance.
That's true enough.