Muc-Off Tubeless Valve Core Refill

These are standard Presta valve cores with a removable design. They are compatible with the vast majority of tubeless valves on the market, but they will not work with valves that have a fixed, non-removable core.

Valve cores often become clogged with dried sealant over time, making it difficult to inflate your tires or check pressure. Replacing the core is a quick, inexpensive fix to restore proper airflow without needing to replace the entire valve stem.

You will need a simple valve core removal tool to unscrew the old core and tighten the new one. Most tubeless valve caps or dedicated multi-tools include this feature, making the swap a matter of seconds.

Yes, these are universal Presta valve cores designed for use across both road and mountain bike tubeless systems. As long as your valve stem has a removable core, these will fit.

No, you do not need to apply any sealant or thread locker to the core threads. Simply screw the new core in until it is snug; the rubber seal on the core will handle the airtight connection.