Added: 1 year ago
From: ExcelSportsBoulder
Views: 5,280
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  • It is a hollow tube, but you still want all the pressure you are pumping to get into the actual valve. It just ensures the seal so you don't have to try to chase down the high pressures!

  • What is the point of the tape? Isn't the zipp extender a hollow tube? If air was going to leak out wouldn't it just come out the top? Or is there some sort of valve built into the zipp extender?

  • Thanks, glad we could help! Let us know if you have any questions and always feel free to call us at the shop as well

  • wow awesome video, just what i needed, zipp and vittoria thanks

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