+1 on running Tubeless - that's definitely on my list of up-coming farkles (if I could ever find a round tuit, I'd be set!). As far as air off road goes, I carry a cheap air compressor that I run off a cig plug that I added to the beast. Actually I have a SAE connector wired to the battery for a battery tender and an SAE to cig plug adapter that I found at wallyworld for $5. The compressor plugs right in and works great. BTW, I had one of the small slime pumps for a while and took the case off to make it even smaller but, without the case, it really gets banged up when going off road and got pretty much destroyed in one trip. I just suck it up and carry the $15 compressor that I found at Target with the case on it so's not to find a busted compressor when I need it most. Takes up more room but worth it.