Go to IRV2 forum (sister forum to this forum - same sign in credentials will work) and search "Tryon bands". Lots of threads to read.
This thread from May 2023 is interesting to read...
https://www.irv2.com/forums/f106/whe...ol-614308.html
It seems that when you first get the bands installed they are supposed to give you a roadside emergency kit..see pic below. You can buy one from Tryon for $280. Several folks in the thread above mention that Les Schwabb stores have worked with Tryon bands. I was surprised at how many posters bought the RV used and the bands were on the rig...now they want them removed due to the good chances that an emergency roadside assistance crew will refuse to work with the bands. Retroband is a competitor to Tryon bands if you are interested in getting them.
In the last post of the thread referenced above - one guy posted this...
Hello,
I created a business helping people with anything Tyron related .
Let me know if you need any assistance at all.
-Jeff Townsend
Blue Chip Auto and RV Services
(858) 922-5595