The Impac tube is designed for 27.5, 28, and 29-inch (69.85 cm, 71.12 cm, 73.66 cm) bicycle rims and is compatible with various tire widths from narrow to standard. This black rubber tube features a 40 mm Dunlop valve for reliable inflation on road bikes, mountain bikes, and hybrid bicycles. The ETRTO size compatibility includes 40-584, 37-622, 40-622, 47-622, 32-630, 40-635, and 60-635, making the tube suitable for multiple bike types and tire configurations. Weighing 220 grams, it contributes to minimal rotational mass while maintaining durability. Made from high-quality rubber, this tube offers consistent air tightness and resistance to punctures. The 40 mm valve length ensures easy access for inflation across different rim depths. This unisex bicycle component serves as an essential replacement part for maintaining optimal tire pressure and performance. Its compatibility with various rim sizes makes the tube a versatile choice for different cycling applications. Proper installation ensures reliable performance under various riding conditions and terrains. The rubber construction provides flexibility while maintaining structural integrity under varying pressure conditions. This tube meets standard requirements for recreational and commuter rides.