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Gray Presta Valve Core Extender Review

3

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Very good

Revainrating 4.5 out of 5  
Rating 
4.7
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Details

ColorRed
MaterialRubber
BrandGray

Description of Gray Presta Valve Core Extender

GRAY’s newest custom-designed valve extensions are now designed for "inline" use. Inline extensions are installed between your existing valve stem and the Presta valve core, creating a more reliable seal. A rubber o-ring at the base of the extension prevents leaks. Inline valve extenders can only be used with Presta valves which feature a removable valve core. For easy core. Available in two lengths (40mm and 80mm). Compatible with all carbon wheels. 40 mm for 5.0 and 45WLX, 45WLC wheelset / 80 mm for 9.5 and 80WLC wheelsets. Individual weight: 2.3 Grams

Reviews

Global ratings 3
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    2
  • 4
    1
  • 3
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  • 2
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  • 1
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Type of review

Revainrating 4 out of 5

Very good. for tools and devices

was damaged. They fit my 38mm discs perfectly. Great quality and they come with two tiny extra o-rings to seal the valve.

Pros
  • Available in two lengths (40 mm and 80 mm). Compatible with all carbon wheels. 40mm for 5.0 and 45WLX wheelsets, 45WLC / 80mm for 9.5 and 80WLC wheelsets.

Revainrating 5 out of 5

Must purchase gray valve extender 80mm

Gray 80mm Presta valve extender works great! Good quality product and received on time. I love RED, too bad there is no renewal key :)

Pros
  • In-line valve extenders can only be used with Presta valves that have a removable valve core. For light core
Cons
  • Slightly torn

Revainrating 5 out of 5

Buy it if you have a Zipp 808

Loved it. I wrapped some thread sealing tape around the extension before inserting it into the tube valve and did the same with the valve cores. Pump up the air and then check for air leaks before I put it in the wheel. Worked great.

Pros
  • GRAY's latest custom designed valve extenders are now for "built in" use
Cons
  • There are downsides