I used to do quite a lot of long distance night riding, for fun and business. Carried a 5 liter fuel bag in the tank bag. Piped it into the FI return; burned it off first to lower the CG. Used a hemostat as a valve.
I'm also a shiny bike fanatic. Painted the V7 III 'racer/poser,' w/ less than 400 miles on the clock, intending it to be my long distance mount.
Exchanged a few bits for reliability and better braking. Suddenly I had to acknowledge aging out of 470# motorcycles. For sale. R3~