No, all mousse products available on the market are not approved for use on public roads. In addition to its use in motocross, mousse is also used intensively in enduro racing and is common practice there. Since the road stages at enduro events make up a rather small proportion of the route, the use of mousse is tolerated at the technical inspection. However, no mousse survives a TÜV test, because just like motocross tyres, it is marked with NHS, which means "Not for Highway Service" and is only approved up to a maximum speed of 80 km/h.