We are delighted to introduce you an innovation never seen before in the world. This is a special tubeless valve that is designed to be compatible with most commercially available liners. The innovation is based on an advanced design based on 3 main elements 1. The wide angular bore prevents clogging of the sealant and ensures greater air flow. The open cross-section is larger than a conventional valve head. The mounting direction of the valve head hole is aligned with one of the rim edges because of thisIn this manner, in each direction of rotation, the possibly fixed pneumatic sealant is continuously extruded from the rim by centrifugal force. 2. This design made it possible to substantially reduce the height of the valve head, i.e. the part that projects inwardly toward the rim. This creates another important advantage that allows the insert to lie better on the base of the rim channel. 3. weight! Yes, in fact, reducing weight on highly developed components is not always possible, but we have succeeded. We invested a lot of time, production, prototypes and varioustests, we have finally achieved a world record result, in fact, the exclusive aluminum PTN valve specific to the liners is the lightest in the world, weighing only 4 gr. Weight includes complete valve with all accessories. This creates another important advantage that allows the insert to lie better on the base of the rim channel. 3. weight! Yes, in fact, reducing weight on highly developed components is not always possible, but we have succeeded. We invested a lot of time, production, prototypes and various tests, and finally we achievedworld record result, in fact, the exclusive PTN-specific aluminum valve is the lightest in the world, weighing only 4 gr. Weight includes complete valve with all accessories. This creates another important advantage that allows the insert to lie better on the base of the rim channel. 3. weight! Yes, in fact, reducing weight on highly developed components is not always possible, but we have succeeded. We invested a lot of time, production, prototypes, and various tests, and finally we achieved a world recordin fact, the exclusive PTN aluminum valve is the lightest liner in the world, weighing only 4 grams. Weight includes complete valve with all accessories. production, prototypes and various tests, ultimately achieving world record results, the exclusive PTN-specific aluminum PTN valve is the lightest in the world, weighing only 4 gr. Weight includes complete valve with all accessories. production, prototypes and various tests, ultimately achieving a world record result, exclusive PTN aluminum cylinder specific valvethe lightest in the world weighing only 4 gr. Weight includes complete valve with all accessories.