Ride with Confidence! 🏍️ Self-sealing properties prevent explosive punctures 30-day free return/exchange policy for peace of mind TR4 straight valve stems ensure a tight fit Made from high-quality butyl rubber for longevity Fits most 19-inch dirt bike tires (2.75-3.00 inches wide) Explosion-proof design TR4 valve stem security Heavy-duty butyl rubber The StaiBC 2.75-19 3.00-19 Inner Tubes are designed for motocross and dirt bikes, offering a universal fit and made from durable butyl rubber. With TR4 straight valve stems for secure installation and explosion-proof features, these inner tubes ensure a safe and reliable ride. Each pack includes two high-quality tubes and a 30-day return policy.