Originally Posted by
c_booth
The comparison doesn't stand up. Unicycles (by their very nature) have no handlebars, so you have to sit bolt upright to keep your centre of gravity over the cranks in order to ride the thing. Extend that 90deg geometry to a bicycle and it would shift your centre of gravity so far forward of the cranks you'd be placing a massive amount of upper body weight on your arms. Even the most extreme TT frames don't go that far.
my post referred to the seatpost. as most of the thread was a discussion of the seatpost angle.
most of us can ride a bike without the use of handlebars (like a unicycle). so i'm asking what does the angle of the seatpost have to do with comfort unless the discussion is equally focused on where one grips the handlebars. which in turn is determined by the toptube length, stem length, shape of the handlebars, whim of the rider at the moment, and where the saddle is clamped on the post?