Zipp Valve Extender - 98mm for 1080 1 Piece for Threaded Presta Valve Black. Zipp valve extenders for use with threaded non-removable presta value tubes.For use with threaded presta (non-removable core) tubes
Extenders thread "over" an existing valve and do not "replace" a valve core
Knurled end to keep pump from slipping
3mm hex broach in the barrel to guarantee a perfect seal when tightened
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