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 Silicone sealant the MT 21 RALLYCROSS is

the MT 21 RALLYCROSS is your reliable companion for every journey

Made from high-quality thermoplastic polyurethane (TPU)

(4) TRIPAK Deep Blue Chain Conditioner - Advanced Anti-Wear Formula

making it a perfect fit for custom setups or lighting upgrades

The Quik-Lok bit extension allows access to tight or tricky spaces and lets you change out bits quickly to get your job done faster

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 Silicone sealant the MT 21 RALLYCROSS isUpgrade 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