Does that bead looks dangerously close to blowing to you?? Cool pic.
Spence
Yes it does! That tire is a 35" BFG KM2, set to 14psi. I ran my tires at 4 different pressures to see how they'd do (these tires are fairly new to me). My presures ranged from 8spi to 14psi, in 2psi increments.
10psi felt like the sweet spot, but I was certainly surprised by the bead bulge at 14 psi. However, after running the trail (a VERY rocky trail, more technically difficult than the Rubicon IMHO), that tire still head exactly 14psi in it, so there was no leakage, nor did I have any sidewall scars or cuts.
Here is a shot of the 10psi tire, on a bit smoother rock surface
Here is a shot of the trail: