And the winner is... V85TT

[faffi]

German magazine MOTORRAD have listed the bikes with the longest range on a tank of gas, and the V85 offered the most with 548 km to bone dry (340 miles) with the consumption the bike had during the test loop (4.2 liters per 100 km = 56 mpg).

[PeteS]

Thats pretty much my experience. 65-70 mph is the sweet spot. Over 70 MPGs start to drop.

Pete

[rocker59]

Love the range on the V85TT  !!!  Wish I liked the bike, more.  Not that there's anything wrong with it.  Just not my style.

[JJ]

Love the range on the V85TT  !!!  Wish I liked the bike, more.  Not that there's anything wrong with it.  Just not my style.

The number one issue with the entire V85TT series is that they are ALL just too tall in the saddle for me, (*SIGH*)    At age 72, I want to plant both feet solidly on the ground...

[bad Chad]

I will point out that the v85 has a lower seat height than much of it's direct comp.   Seat height on the v85 is 32.6/830mm but can be dropped or raised close to an inch with the optional Guzzi seat.  I put on the high seat and love it!  Just for comparison, Triumph 900 adv is 33.8 and the Desert X is 34.4.

[Luap McKeever]

I love my V85. It's quickly becoming the best all around Guzzi I've ever owned. Even with that 6 gallon tank, I've gotten into pickles before in back country and dang near ran it out of gas. So, I mounted two aluminum beer cans to my urban saddlebags for an extra 40 ounces of "reserve" or at least fuel to start a fire if I need to survive a night
You can see them in this photo I took a couple days ago.

[Ncdan]

Y’all’s bladders apparently hold a much larger volume of fluid than mine does because I’ve got to find a gas station every two hours for a “pit stop”😩🤣

[Vagrant]

Absolutely nothing to do with bladders! There are no gas stations West of the Mississippi in many states.

[JJ]

Y’all’s bladders apparently hold a much larger volume of fluid than mine does because I’ve got to find a gas station every two hours for a “pit stop”😩🤣

On our numerous "Road Trips", my wife has an expression which we live by: 

"Never pass up an opportunity for a bathroom break!"

 

[jrt]

I love my V85. It's quickly becoming the best all around Guzzi I've ever owned. Even with that 6 gallon tank, I've gotten into pickles before in back country and dang near ran it out of gas. So, I mounted two aluminum beer cans to my urban saddlebags for an extra 40 ounces of "reserve" or at least fuel to start a fire if I need to survive a night
You can see them in this photo I took a couple days ago.

Luap, after your troubles with the 1400 and a few other bikes... I'm glad to read that you are becoming happy with this one.  You deserve it, 100%.  I sincerely hope it just get's better and better. 
I enjoyed my V85 for awhile, but it just didn't quite tick off what I wanted.  Now I've got a bit older 1100 Cali and it's just about right for me. 

[faffi]

Gas stations are some of the last places I want to be, and the fewer visits I must make, the better. A long range allow me to stop when I want to, instead of when I must in order to get fuel on board, be that car or bike. My family car can go up to 700 miles on a tank of gas, while my Roamer has an average range of 220 miles. More often than not, I have stopped by the side of the road to pee before I have exhausted the range even of the Guzzi.

But those are just my personal preferences and is not a general rule that apply for everybody. I would love to have a range of 600 miles on my motorcycle, but no stock bike I am aware of deliver that. At least none that I would like to own.