The Stans No Tubes Threaded Valve Extenders 40mm offer a straightforward solution for adapting deep section rims for tubeless use, thanks to their external threads that secure the presta nut with precision. As the sole option with this feature, they provide unmatched convenience and reliability.Discover the key features of Stans No Tubes Threaded Valve Extenders 40mm:External Threads: These unique external threads enable the secure attachment of the presta nut to deep section rims, facilitating a hassle-free conversion to tubeless use and ensuring a firm, leak-free seal.CNC Machined Aluminium: The precision of CNC machining offers a lightweight yet robust valve extension, ensuring durability without adding unnecessary weight to your ride.Rubber O-Ring Seals: Integrated rubber O-rings seals inside the valve prevent air leaks, maintaining consistent tyre pressure for a smoother, more reliable ride.Versatile Compatibility: Designed to extend any removable core presta valve by 40mm, these