You are correct Bobs... All good points well made. Here in the West,,we have to deal with a lotta very large mountains, which result in a variety of long steep grades. There are lots of steep mountain highways and freeways here in Idaho and eastern Oregon that are 3 to 5 miles long and even longer in some areas. Very Steep too. White Bird Pass,,Cabbage Hill,, 6 to 7% grades and many miles long. When riding 2 up.....I didnt like shifting down to 4th gear to try and keep at 50 mph. And that is what I used to have to do,, not to mention the heat issue going on too...Could not pass trucks pulling 5th wheels and trailers. Had to stay behind them to draft and keep up!! Do not have that issue now. 70 mph in 6th all the way to the top on any of them. Geography will also play a part in what you need for power. I will use that as an excuse to upgrade power! LOL I do not worry about fuel milage,, never check it, have no idea what I get. Have to fill it anyway and it is only 6 gallons!..not an issue for me.
We were out west in late September. Went out to the Las Vegas Bike Rally. Only took the Triglide. Rode in every State going out. Rode in Northern Arizona at some pretty high altitudes. Rode several Days in 95 Degree heat in Nevada. Never had a problem riding two up. I must have a different bike than you guy's...:Shrug: