Originally Posted by
ejewels
Right, so basically on level ground. The wheels would also then be level. Maybe I'm wrong, but isn't the horizon then level to all of that? I believe effective top tube is a horizontal/level measurement?
Until the road slopes up or down. But we're only talking about a difference of 5° or so, so it doesn't make much difference in sitting. Much more than that, I'm either too slow to care about aero or coasting down.
