Muc-Off Big Bore Tubeless Valve

The Big Bore valve features a straight-through design that eliminates the restrictive core found in traditional valves. This allows for 230% more airflow, which makes seating tubeless tires significantly faster and easier.

Yes, the valves are designed with a four-way base that ensures compatibility with most tire inserts, preventing the airflow blockage that can sometimes occur with standard valves.

These valves are designed for mountain bike setups and feature a 75mm stem length. You should ensure your rim depth is appropriate for this length before purchasing to guarantee a proper fit.

No special tools are required. The valves feature a machined hex slot at the base, allowing you to tighten or remove them easily with a standard hex key.

The Big Bore valves use an integrated stainless steel ball valve mechanism designed to resist clogging. While the core is not a traditional removable Presta core, the design is robust and built to handle sealant buildup effectively.

The pair of valves weighs 45.36 grams total. They are constructed from CNC-machined 7075 aluminum to keep weight low while maintaining high durability.