Anyone running tubeless tyres or inner tubes with removable-core Presta valves who has a leaking, bent or sealant-clogged core.
Valve cores are one of the most common causes of a slow leak, especially on tubeless setups where sealant dries inside the mechanism. This is Vittoria's own Presta valve core, the same part fitted to its Multiway and Singleway tubeless valves.
Vittoria designs it for all Multiway and Singleway valves, and it also fits Presta valves from other brands as long as the core is removable (look for the two small flats on the threaded part). Vittoria's own advice is to swap the core each time you change a tyre.
We sell them one at a time, so you can grab exactly what you need rather than a whole box.
Direct replacement
Made for Vittoria Multiway and Singleway tubeless valves.
Fits other brands
Works in most removable-core Presta valves.
Fixes slow leaks
A fresh core is the simplest cure for a valve that won't seal.
Buy just one
Sold individually, no need for a full box.
Valve core
In the box
Great for
Maybe not for
Check your valve has a removable core: the threaded top section will have two flats for a core tool. Suits Vittoria Multiway and Singleway valves and most other removable-core Presta valves.
Swapping a core
Let the air out, then undo the old core with a valve core tool (or the notch in many valve caps). Clean any dried sealant out of the stem before threading the new core in, and snug it up by hand plus a touch. Overtightening can damage the seal.
Adding sealant
Pulling the core is also the easiest way to top up tubeless sealant through the valve. If the old core is sticky or bent once it's out, that's the time to fit a new one.
Italian tyre specialists.
Vittoria is an Italian cycling brand best known for its road, gravel and mountain bike tyres, along with tubes, tubeless valves and sealant.
