Zipp Presta Valve Extenders (Black) (Single) (33mm)

Zipp Speed Weaponry valve extenders for use with threaded, non-removable presta value tubes. Features: 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 Sold each