Halo Alloy Presta Valve Extension - 72mm - Black
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Product Information
Full details
The Halo Alloy Presta Valve Extension is designed for cyclists with deep section Aero rims who need a reliable way to use standard pumps with their Presta valves. Its key benefit is extending the valve length for easy inflation, preventing you from being caught without a spare inner tube solution. A minor caveat is the need for careful installation to ensure a proper seal.
All features
| Model Part Number | TUHAVX7K |
|---|---|
| Brand | Halo |
Extended Product Information
FAQs
Will this extension work with my standard road bike pump?
The Halo Alloy Presta Valve Extension is designed to work with most 'press-on' style high-pressure pump heads. If your pump head presses onto the valve, it should be compatible.
How do I know which size (48mm or 72mm) I need?
The size you need depends on the depth of your deep section rim. Measure the length of your standard Presta valve from the rim to the tip. Choose the extension that, when added to your existing valve length, will allow your pump to connect comfortably.
Does this extension affect the Presta valve's function?
No, it acts as an extension. The internal mechanism of the Presta valve remains the same. Existing air pressure keeps it sealed, and pump pressure opens it for inflation.
Is it difficult to install?
Installation is simple. It threads onto the valve like a cap. You just need to ensure the valve's lock nut is partially released and then tighten the extension securely.
What is the extension made of?
It is made from lightweight, precision CNC-machined alloy.
Can I leave these on my valves permanently?
Yes, they can be left on, but it's recommended to ensure they are securely tightened and that the seal remains airtight. Some users prefer to remove them when not actively needing the extension.
Troubleshooting
Air leak after installation
Ensure the extension is fully threaded onto the valve and that the valve's knurled lock nut is properly released. Check for any debris on the valve threads.
Pump head slips off during inflation
Confirm you are using a compatible 'press-on' style pump head. Ensure the valve extension's exterior profile is clear of dirt or obstructions that might hinder pump grip.
Difficulty screwing on the extension
Check that the valve threads are clean and undamaged. Ensure you are threading it on straight and not cross-threading.
Pros and Cons
Pros
- Extends valve reach for deep section rims, making inflation easier.
- Lightweight and durable CNC alloy construction.
- Secure pump connection prevents slippage during inflation.
- Simple thread-on installation process.
- Aesthetically pleasing anodised finish.
Cons
- Requires careful installation to ensure an airtight seal.
- Adds a small component that could potentially be lost if not secured properly.
- May not be compatible with all pump head designs, though most press-on types work.
Setup, Compatibility & Care Instructions
Setup:
- Unscrew the existing Presta valve cap.
- Release the knurled lock nut on the Presta valve about two-thirds of the way up its spindle.
- Thread the Halo Alloy Presta Valve Extension onto the standard Presta valve as you would a normal valve cap.
- Tighten using the internal hex key recess if needed for a secure fit.
Compatibility:
- Designed for standard Presta valves.
- Suitable for deep section Aero rims where standard valve stems are too short.
- Compatible with most press-on high-pressure pump heads.
Care:
- Clean with a damp cloth. Avoid abrasive cleaners.
- Periodically check for tightness and ensure the seal is secure.
- Store in a safe place when not in use to prevent loss.