Michelin Bib Mousse – The Original Flat-Proof Insert for Off-Road Riding Say goodbye to pinch flats, tube changes, and unpredictable pressure. The Michelin Bib Mousse Foam Insert is the gold standard for riders who push hard in enduro, motocross, desert, and hard enduro conditions. Designed to replace traditional inner tubes, Bib Mousses deliver a consistent “inflated” feel with zero risk of flats. Whether you’re racing or just mobbing singletrack, this is the foam insert trusted by pros and weekend warriors alike. Key Features Michelin Bib Mousse Replaces traditional tubes with a foam insert equivalent to ~13 psi Eliminates pinch flats, blowouts, and tube failures Pro-level performance in extreme terrain Works with most off-road tires No maintenance or air pressure checks Available in multiple sizes for front and rear applications Sizing & Fitment Compatible with Michelin and other off-road tires Common fitments: 80/100-21 front, 110/100-18, 120/90-18, 120/80-19, etc. Refer to the Michelin Size Chart to match your tire size Note: Bib Mousse inserts may require extra tire irons and lube for installation. Ideal For Enduro and hard enduro Desert racing GNCC / woods Motocross Trail riding Baja / rally builds 🔧 Install Tips Use with Michelin Bib Mousse gel or similar for proper fit and heat protection Break-in recommended for optimal feel Not intended for sustained high-speed road use