Muc-Off Big Bore Tubeless Valves

The Big Bore Lite valves remove the traditional inner core entirely, replacing it with an internal ball valve mechanism. This design allows for 245% more airflow, making it significantly easier to seat tubeless tires quickly.

Yes, these are compatible with most tubeless-ready wheelsets. They are designed as a direct replacement for standard Presta valves, provided your rim depth accommodates the 30mm stem length.

Not at all. You can still check your tire pressure using a standard gauge, just as you would with a traditional valve. The external lever simply controls the airflow for inflation and deflation.

One of the primary benefits of this design is that it eliminates the narrow valve core where sealant typically dries and causes blockages. The ball valve mechanism is much less susceptible to sealant buildup, ensuring consistent airflow over time.

Installation is straightforward. Each valve features a machined hex key slot at the base, allowing you to tighten the valve securely into your rim using a standard hex key without needing specialized tools.