[One Country Boy]

This is the first dual wheel vehicle we have owned. I'm having a problem checking and putting air in the rear tires. Not the inside tires, they have flexible, wire mesh valve stem extensions on them and are easily accessable. The outside tires do not have extensions on them and face the inside. I have to reach in, between the two tires to check the pressure. To add air is an even larger problem.

What type or brand extensions do I need? Where do I get them? Do the tired have to be removed and re-mounted for the longer extensions to be installed in the rim itself? They will have to be flexible or curved to face outward through one of the holes in the rims. Do that make an extension where the valve can removed from the existing stem and the extension be added or threaded to it, with a valve in it? This way the tire would not have to be removed at all.

I'm just not familiar with this stuff. Any advice would be appreciated. Thank you.