Originally Posted by
bikerjp
It's not necessarily twice the slowest speed (look at the examples on the previous page), but you are right that hills will always lower the average speed compared to flat ground. Why some people fail to understand this is beyond me.
It makes me wonder if they do much climbing, then. My example is true when there's an equal amount of climbing/descending, like if you do an out and back.
When you climb these long mountain roads as slowly as I do, you have alot of time to consider such things...