Zipp valve extenders for use with removable presta value tubes.
- For use with removable valve core presta tubes
- Works with Zipp butyl inner tubes with a removable core as well as other leading tubular tires and inner tubes that have removable cores
- Knurled end to keep pump from slipping
- 3mm hex broach in the barrel to guarantee a perfect seal when tightened
- Integrated air seal
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