I know I am in the minority but on my 525 with D606s I run 15psi for off road only. For stuff where I'm running pavement I go to 20psi front and 20-25psi rear depending if I have my camping stuff or not. I let my suspension be the cushion. I don't think any increase in traction is worth damaging a rim or tire in a remote location. YMMV
The only reason I have 15psi in the front is because my tube has a slow leak!I know I am in the minority but on my 525 with D606s I run 15psi for off road only. For stuff where I'm running pavement I go to 20psi front and 20-25psi rear depending if I have my camping stuff or not. I let my suspension be the cushion. I don't think any increase in traction is worth damaging a rim or tire in a remote location. YMMV
For big bend, my buddy on his XR650r and me on my xr400, we both use 18psi rr, 19-20 fr., on 21"/18" spokes
he uses desert maxxis iT fr&rr,
i use combo d606 rr , mt21 fr
This PSI range is the best compromise for a dirt bike doing big bend as this ensures no pinch flats should you hit that sharp edge riding the canyons at a good clip, and it ensures you don't melt up all those sweet knobs pounding pavement to the nearest gas station and/or back to your motel/campsite.