I searched and didn't find much on this. On my other, lighter dual sports, I always found it much better to air down for "off-road" (OK, rougher dirt road) riding. My DR650 liked ~18, the WRR a bit less. I'm not experienced with a heavier adventure-type bike-what pressures do you guys and gals run when in the dirt? I'd expect the street pressures to have the bike bouncing and slipping all over when the going gets rough.