doxiemom11 wrote:
We are also a motorhome and need higher pressure. We carry a Porter Cable pancake compressor that will go to 150 psi. Not the huge either, rides in one of the bays.
This is the way to go IMO if you have the room in a big rig like yours. However, being someone who packs a lot of tools for "what ifs", I've never had on board air or really felt the need for just tires.
Now if you're on extended trips or full timing, it would be somewhere between very handy and a necessity. And with a contractors pancake compressor you'll have enough air to run some basic air tools...if you're not in a big hurry with them.
I did plumb an air line off my exhaust brake compressor this year, mainly cause we were going to be unloading the TC a few times and it's a challenge to load it with the air bags aired up and driving around empty with airbags aired up is not fun.
Aside from airing up the bags, it's come in handy for other people's bike tires and an atv tire that had a flat.