How to Replace a Tubeless Tire Valve Stem?

[Millie]

Apply grease on the valve stem Clean the wheel rim. Insert the valve stem into the round hole. Use pliers to adjust the angle. Pull with a wrench to install it in place.

[LilyLynn]

I've personally replaced tubeless tire valve stems several times. First, you need to remove the wheel and deflate it, then use professional tools to pry open the tire edge to expose the valve stem hole on the inner side of the rim. The nut of the old valve stem must be unscrewed from inside - it's best to use needle-nose pliers to grip the base and rotate. Before installing the new valve stem, apply some rubber grease, otherwise the seal ring might get stuck. Make sure to choose the correct specification - I've seen cases where wrong models caused slow leaks. During installation, ensure the seal ring is fully pressed into the rim hole, then remount the tire and inflate to standard pressure. Finally, perform a water bubble test to check for leaks - last time I skipped this step and ended up with a midnight blowout.

[VanValeria]

As a DIY enthusiast sharing some experience: You'll need a valve core wrench and tire pry bar. First jack up the car and remove the tire, then deflate it and pry open the tire edge. At this point, you can see the fixing nut at the base of the valve stem - loosen it counterclockwise with the wrench to remove the old part. The key is aligning the new valve stem correctly during installation. After passing the metal rod through the wheel hub hole, firmly compress the rubber sealing washer. Once I didn't position the rubber washer properly and it blew off immediately after inflation. Tighten the nut after installation, and remember to do wheel balancing after reassembling the tire, otherwise it will vibrate at high speeds. The whole process requires the most patience.

[CarmenRose]

Replacing this is actually not difficult. First, deflate the tire pressure and use a tire lever to pry open the tire. Unscrew the fixing nut from the inside of the rim to remove the old valve. When inserting the new valve, ensure the rubber sealing gasket fits snugly into the rim hole. Be careful not to overtighten the fixing nut—I've seen cases where the rubber gets deformed. I recommend using an all-metal valve for better durability; plastic ones tend to degrade after about two years. After reinstalling the tire and inflating it, spray soapy water to check for leaks. The whole process takes about half an hour, but having the right tools is key.