Upgrade your motorcycle's performance with these heavy-duty 18-inch inner tubes featuring thick 1.2mm sidewalls for superior puncture resistance. These robust tubes are engineered to withstand demanding off-road conditions while maintaining optimal air pressure. The premium butyl rubber construction offers excellent air retention and durability, making these tubes ideal for dirt bikes and motorcycles. Each tube comes equipped with a reliable brass valve stem for easy inflation and maintenance. The reinforced construction helps prevent pinch flats and extends tube life, even in challenging terrain. Perfect for riders who demand reliable performance from their motorcycle's tire system. These tubes provide the essential foundation for stable, confident riding across various surfaces. Compatible with standard 18-inch motorcycle tires, these inner tubes deliver the dependable performance needed for both recreational and competitive riding.