The Gibson "Soft" Mousse is the softest variant and simulates a pressure of approx. 0.6 bar. The medium-hard mousse simulates a tire pressure of approx. 0.8 -0.9 bar in comparison with a conventional hose, and the Gibson Hard Mousse is the hard variant and corresponds to a pressure of approx. 1.2 bar. Of course, these are only guideline values, which can differ depending on the choice of tire, the density of the mousse and the operating temperature. Ultimately, these values are of course also dependent on the ambient temperature and the weight of the driver.