Stan’s Tubeless System transforms normal MTB tires into tubeless tires and gives you the choice to ride them with tubeless tires or normale tires without tubes. It gives you full protection from flats, is lighter and more affordable than normal tubeless systems. Stan's Tubeless System secures the tire to both sides. The tyre sealant from latex milk distributes itself evenly thanks to the running of the tire on the inside and creates a protecting layer. If it gets punctured the latex milk seals the hole up to 6 mm and does not let air out.