Circuit Performance Black Bolt-in Flush Mount Valve Stems (Set of 4)

Im a professional tire technician, and not just cars either. Everything from high end Mercedes to industrial mining forklift tires pass through my hands. Ive seen and used close to 80 different valve stems over the years. The material these are made of is soft and prone to incorrect installation. Id recommend installing these yourself because if an uncaring tire tech at a big chain tire store installs these they may damage them if they arent careful. I love the way these look and all my co-workers are flabbergasted by these unique stems. Even though they work well I might change them out later for something easier to check the air pressure on. It takes about 11 minutes to check the air pressure with these stems since for each tire you have to unscrew the cap with a flat head screw driver then screw in the adapter then check the air and then take the adapter out and reinstall the cap. If you do decide you want these you can paint the cap to match your wheels or leave it black. the extension you need to treat the same way you treat a wheel lock key. Keep it somewhere you womt lose it and always put it back when youre done. If you lose it then youre f*#&÷d and wont be able to add air to your tires. Even so its still a great product and it looks super clean on everything from a lower track car to a lifted rockcrawler.

These give rims a super clean look, no ugly valve stem sticking out of my rims. Not difficult to install if you have a way to break the bead of the tire and push it down far enough to get to stem location. Only bad part is that it states you get 4 flush mount valve stems AND THE SCREW IN FILL STEM. Well take a guess which item was missing from my purchase.... Useless without the fill stem. Would have been 5 star if all components were in the package.

First of all threads on this valve stems suck the filler valve don't thread down all the way in to the valves still works but why have a oring on them if they don't thread all the way like there supposed to second the caps don't thread down all the way because of the bad threads and the oring don't seal because of this letting water and dirt in the the valve no good not sure if I got a bad batch or what but there junk

These worked great on my new wheels that would not allow a standard valve stem.

Must be installed from the inside but look great installed mine in 20 inch aluminum wheels nice custom touch