Lucioli Inner Tubes - 21" FRONTLucioli inner tubes are high quality, durable and reliable products designed specifically for dirt bike riders. Made from top grade materials, these inner tubes ensure a long lasting, trouble free performance on the toughest terrain. They are available in a variety of sizes to fit your dirt bike perfectly, allowing for easy installation and use. The advanced design of Lucioli inner tubes features a reinforced valve stem and a heavy duty construction