2pcs 50mm/1.97" Long Brass Auto Tire Valve Extension Adaptor Air Tyre Stem Extender Inflation Stright Bore for Car Truck Motorcycle Bike Mower Scooter

Needed these for my RV’s inside dual tire so I could add tpms sensors. These things are quality and did exactly what I wanted.

I use the tire valve extensions to inflate scooter tires since the valves are pretty short. But the primary advantage is I'm able to quickly unscrew the valve extensions from the tire's valve stem reducing the tire's air pressure loss. Advantage since a scooter's tires are small and a little air loss can significantly reduce tire's air pressure. Using the valve extensions I lose only 2-3 psi.

I ordered this extender and then read afterward that somebody left a review saying that the ends were notched on the ones he received, making them leak with his TPMS. I’m happy to say that the ones that I received did not have any notches in the end and they work great with my TPMS. No leaking air.

Poor materials. Broke on my 22.5X motor home tires and ruined a new $700 Tire.

Work great on my rear duels makes it easy to air up inside tire!

Put them on and 20 minutes later had a flat tire. Tightened them to the point I thought the valve stem might spin. Reinflated the tire and things have been fine. Used the tractor for 5 hours after with no issues.

I used these on a 1940's aircraft wheel that needed long valve stems. Once snugged onto the inner tube's valve stem these worked perfectly. No leaks. Made very sturdy.

Perfect length I was looking for. When secured to the valve stem, air was leaking out from the extension. I was able to use the cap to tighten the needle, but my use of this involves adding a tire pressure monitoring cap. The needle protrudes from the stem so much that the cap has to be pushed and screwed on at the same time. By the time I could get the threads started, I had lost 5 to 10 psi. My other complaint though minor, still a fact, it's brass color is ugly. If they worked properly, I would pay extra for a chrome or nickel finish.