In the mean time before you get a chance to put custom valve stems on, you can still properly maintain your tire pressures.
I added short extensions to the outer dual, and use the following process to check & add air (78% nitrogen!):
![](http://m5.i.pbase.com/o9/88/791988/1/151853705.Vuhi4fgu.IMG_0806.JPG)
I can move them to any wheel I want when I rotate the tires. I just completed this task a month ago as I had a vibration develop in the front right on our last trip. I pull the wheels & haul them to the tire shop for balancing. I reinstall them where I want, and I ensure the duals are properly installed, that is, the sight hole in both wheels is lined up with the indicator in the hub, and the stems are opposite each other:
![](http://m2.i.pbase.com/g9/88/791988/2/151853712.NgMZms5q.jpg)
Here's my
Pressure Checking Process in pictures.