What tire pressure do I run my 400EX rear tires when hill climbing in loose sand/gravel? Also, what tire pressure should I run a MX track with tight turns and alot of jumps. I can read the tire pressure on the side of the tire, but when I was hill climbing, I wasn't hooking up as good as everyone else, especially after a run got tore up. Any help would be appreciated.

 

4psi is what ur supposed to run the more you put in the more you slide and the less the more grip u get

 

I run 2.5 psi in the dunes, no jumping, just easy cruising around, and 5.0 psi every where else.

 

they recommend 3.4 to 4.6psi i think so i never go too far either way