Pirelli Motocross Mousse Set – 80/100-21 Front (X-21B2) & 110/90-19 Rear (X-19E1) Foam Inserts | Flat-Proof Off-Road Tire Inserts for MX Dirt Bikes | Medium Compound | NHS Hole It also comes with a

It also comes with a spare magnetic hook-up that can be attached to the inside of the vehicle

Perfect for hypersport motorcycles and naked performance bikes

The tire's advanced MX30F compound is crafted to offer exceptional durability without compromising on performance

and valve‑related service

Impact Driver

Pirelli Motocross Mousse Set – 80/100-21 Front (X-21B2) & 110/90-19 Rear (X-19E1) Foam Inserts | Flat-Proof Off-Road Tire Inserts for MX Dirt Bikes | Medium Compound | NHS Hole It also comes with aUpgrade your motocross setup with genuine Pirelli Mousse foam inserts sized for the most common MX tire combination: 80 100 21 front and 110 90 19 rear. These medium compound rubber foam mousses are engineered to replace conventional inner tubes, delivering puncture proof reliability while maintaining a lively, consistent ride feel. Once installed, they simulate roughly 0. 7 bar of pressure, providing excellent traction, agility, and side wall support