Great looks and obvious quality. My problem is that when I put the cap on it seems to tighten because it has run out of threads on the stem. What should happen is that the cap will press against the top of the barrel and form an airtight seal with the rubber gasket in the cap. But because this stem is so tall, it seems to me that the threads on the stem end before the tip of the stem makes a snug fit with the rubber grommet in the cap. So I don't think the cap will seal the stem like it should in the event of a valve stem leak. But at least if the dirt doesn't get on the valve stem.