Muc-Off Big Bore Tubeless Valves

By removing the traditional inner valve core, the Big Bore design allows for significantly higher air volume to pass through the stem. This increased airflow makes seating stubborn tubeless tires much faster and less frustrating.

Installation is straightforward. The base of the valve features a machined hex key slot, allowing you to tighten or remove the valve securely using a standard hex key without needing specialized valve tools.

Yes, the Big Bore valves are specifically engineered to be compatible with tire inserts. The high-flow design ensures that air can bypass the insert effectively, preventing the common blockages often seen with standard valves.

Instead of a threaded core, these valves use an integrated external lever. You simply flip the lever to open or close the internal ball valve, which provides precise control over inflation and deflation.

The Big Bore Lite model comes in a 45mm length. You should measure your rim depth to ensure this length provides enough clearance for your pump head to attach securely.