Specialist installation lubricant from Michelin, formulated specifically for fitting and running a Bib Mousse. Reduces friction between the foam mousse and the inside of the tyre during installation, which makes the fit far easier and prevents damage to the mousse during fitting. Once installed, the gel continues to coat the inside of the tyre, slowing the heat-related wear that gradually breaks down any mousse over time. Using the correct lube is not optional with a mousse setup. Dry installs damage the foam during fitting, and running a mousse without proper lubrication dramatically shortens its lifespan and can lead to early failure. One tub typically covers several installations. The right paired purchase for any Michelin Bib Mousse, and worth applying again whenever you change tyres on a mousse-equipped wheel.