Mefo Mousse MOM 21 (80/100-21 and 90/90-21 Standard Casing) Universal Inner tubeRef : MEFO00028A / 9004405

MEFO MOM 21 Foam — Foam insert designed for 80/100-21 and 90/90-21 tires (standard casing). Developed by MEFO for motocross and enduro riders, this foam is mounted at the front and fits the narrow rims of off-road motorcycles.

• Usage: Front — MX / enduro special
• Supported sizes: 80/100-21 and 90/90-21 (standard casing)
• Recommended rim width: 1.60 - 1.85
• Equivalent pressure: 0.8 - 0.9 bar
• Weight advantage: lighter than a reinforced inner tube
• Manufacturer reference: MOM 21

MEFO adjusts the diameter of its foam sections based on the internal volume of the tires and offers different structures depending on the discipline practiced. The MOM 21 foam provides a robust alternative for riding without a traditional inner tube on demanding terrains: it minimizes the consequences of a puncture and maintains stable tire seating for steering and landing jumps. Its design is intended to fit common narrow rims used in motocross and enduro, while reducing overall weight compared to a reinforced inner tube.

Ideal for riders seeking reliability and performance in off-road conditions, the MEFO MOM 21 is mounted on the front wheel and is used with the indicated 21" tires.