Hope Tubeless Valve - 40mm
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Product Information
Full details
The Hope Tubeless Valve - 40mm is designed for mountain bikers and gravel cyclists seeking a high-performance, reliable tubeless setup. Its precision-engineered CNC-machined alloy construction provides excellent durability while remaining impressively lightweight, making it an ideal upgrade for riders prioritizing weight reduction and consistency. While the robust design ensures an airtight seal on most rims, users should ensure their rim hole diameter is compatible with the base shape before installation to guarantee a perfect fit.
All features
| Model Part Number | WHSP304-40PK |
|---|---|
| Brand | Hope |
Extended Product Information
FAQs
Are these valves compatible with all rim types?
They are compatible with most standard tubeless-ready rims, but the base shape is best suited for rims designed for standard valves.
Can I use these with tire inserts?
Yes, the 5-way air path is specifically designed to work with tire inserts by preventing airflow blockage.
How do I remove the valve core?
Use the included valve cap, which is designed with a slot to act as a valve core removal tool.
What should I do if my sealant is leaking from the valve stem?
The valve core may be loose or dirty. Tighten the core firmly or remove it to clean out any dried sealant.
How long should these valves last?
With proper care and by keeping the valve core clear of dried sealant, they can last for the lifespan of multiple wheelsets.
Troubleshooting
Air leaking from around the base of the valve
Check that the locking nut is tightened properly and ensure the rubber seal is seated flat against the rim profile.
Difficult to inflate the tire
Remove the valve core and check for dried sealant buildup inside the stem; clean with a thin wire or replace the core.
Valve nut keeps loosening during rides
Ensure the rubber base is correctly positioned and clean, then tighten the nut firmly by hand; do not use pliers.
Pros and Cons
Pros
- Durable CNC-machined alloy build
- Excellent airflow compatibility with tire inserts
- Includes versatile core removal tool
- Lightweight design
- Secure, customizable airtight seals
Cons
- Not suitable for extremely deep-section rims
- Requires careful tightening to avoid damaging rubber seals
- Specific rim hole shapes may require testing for perfect fit
Setup, Compatibility & Care
Installation is straightforward: remove the valve nut and rubber base, insert the valve through the rim hole, and tighten the nut until the base is compressed firmly against the rim interior. Avoid overtightening, as excessive pressure can deform the rubber seal and lead to leaks. For maintenance, periodically unscrew the Presta core using the provided cap to clear out dried sealant residue that may build up over time. If you notice a slow leak, inspect the rubber seal for debris or damage; replacing the seal is usually enough to restore full performance. Ensure your rim tape is properly seated around the valve hole before installation to maintain the integrity of the air seal.