Muc-Off Big Bore Tubeless Valves

The Big Bore valves replace the traditional removable valve core with an integrated ball valve mechanism. This design eliminates the risk of clogging from sealant and allows for significantly higher airflow, which makes seating tubeless tires much faster.

These are designed for standard tubeless-ready rims that accept Presta valves. Because they are 80mm in length, ensure your rim depth is compatible before purchasing.

Installation is straightforward. Each valve features a 4mm machined hex key slot at the base, allowing you to tighten them securely into your rim using a standard hex key without needing specialized valve tools.

Yes, they are fully compatible with standard bicycle pumps. The ball valve design is controlled by an integrated lever, so you simply flip the lever to open the valve for inflation and close it to seal the system.

The iridescent finish is primarily aesthetic, offering a distinct look for your bike. However, the valves themselves are constructed from 7075 aircraft-grade aluminum, which provides excellent durability and a lightweight profile.