These little suckers are a cheap and worthwhile upgrade. Plastic caps usually crack and fall off after awhile, especially when driving through rough terrain. The manufacturer claims that the cap will hold air in the tire even with the valve stem is removed. It’s hard to image that one would ever be in that situation, but it is cool none-the-less. I have these on my 33×10.5 BG Goodrich All Terrains. I noticed the other day that that one of the plastic pieces that connects the valve stem to the cap is broken. I think this feature could be beefed up a little. Otherwise, I have been happy with them.
In the Recommended Gear series of posts I only write about things I own, use, and like.