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 The tire's advanced MX30F compound

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

Impact Driver

and debris while delivering optimal air intake for enhanced engine performance

and versatility across a wide range of terrains

it features a Milwaukee 4-pole frameless motor that delivers up to 167 ft-lbs of torque

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 The tire's advanced MX30F compoundUpgrade 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