Which do you prefer? Metal valve stem extenders, or the flexible braided type that bolt on to your rim?
I've got a couple of RVs (Class C). On the dually rear tires, the inner tire needs some sort of extension to be accessible. The valve stems out of my tires is metal (as opposed to rubber). On one of my RVs, it has a straight metal extender that is probably 6-7 inches long. This is easily accessible for checking air pressure or adding air. It seems pretty solid/stable, but I do imagine that when driving down the freeway at 65mph the force on these stems whirling around could be significant.
I recently had one such tire have a flat on the inner rear dually while sitting in the storage yard. When I noticed and went to fill it with air, the valve stem pretty much just fell off into my hand. So I brought that tire to the tire store to have them check the tire (which was fine) and put on a new valve stem and extender. But this time, when they put on the extender they used a flexible braided type of extender like in this picture:
Personally, I don't really like how these look. And I imagine that over time they must scratch (and then rust) the rim where it is connected. What do others think about these type of flexible extenders? It probably does provide better support for the stem when driving down the freeway, but I just don't really like how they look.
One of my other RVs is due for new tires and I'm bringing it in next week. I called to order my tires and spoke with the salesman about extenders. He says that "everyone" is getting away from the straight metal extenders in favor of the flexible braided type of extenders. Is this true? What type of extenders do YOU have on your inner dually, and what do you think is most common these days?
Have you had good/bad experiences with long straight metal extenders or flexible braided extenders?