Presta valves with a removable core can be rebuilt replacing the internal mechanism. These quality replacement Presta mechanisms are available as packs of 10 pieces and include a Presta Valve Key.
Effetto Mariposa Presta Valve Mechanism/Core (10pk)
Presta valves with a removable core can be rebuilt replacing the internal mechanism. These quality replacement Presta mechanisms are available as packs of 10 pieces and include a Presta Valve Key.