That's a strange question. When you say valve I think about bike tire tube valves. These you generally get with the tubes. The only tube for which valves are regularly replaced are the ones with Dunlop valves, which are pretty rare outside Scandinavia. Then there are tubeless tire systems, but for a valve for those you turn to the rim/tire manufacturer.
To repair a bike tire valve stem, you can try tightening the valve core with a valve core tool or replacing the valve stem entirely. If the valve stem is damaged, it may need to be replaced by a professional bike mechanic.
Er, it's a valve in a bike pump. Usually a membrane type.
What's does the fuel valve do on a 49cc dirt bike
The standard valve type for a 700c bike tube is called a Presta valve.
Have you noticed if the cap on your bike tire valve is missing?
If you have a weird valve stem on your bike, you should take it to a bike shop or a professional mechanic to have it inspected and possibly replaced. It's important to ensure that your bike's valve stem is functioning properly for safe and efficient use.
A Schrader valve is commonly used on a mountain bike tire.
Yes, check if your bike tire valve stem has been pushed in.
To identify if a bike tire has a removable presta valve, look for a small nut at the tip of the valve. If you can unscrew this nut, then the presta valve is removable.
The European bike tire valve, also known as the Presta valve, is typically narrower and longer than other types of bike tire valves, such as the Schrader valve. The Presta valve requires a separate adapter for inflation, while the Schrader valve can be inflated using a standard pump. Additionally, the Presta valve has a locking nut to secure it to the rim, while the Schrader valve does not.
Your bike tire valve may be leaking air due to a damaged or worn-out valve core, a loose valve stem, or a puncture in the valve. It is important to inspect and replace the valve if necessary to prevent further air leakage.
To properly inflate a bike tube using the bike tube valve, first remove the valve cap. Then, attach the pump nozzle securely to the valve. Pump air into the tube until it reaches the recommended pressure level, which is usually indicated on the side of the tire. Finally, remove the pump nozzle and replace the valve cap.