Introducing the Goodyear Bicycle Tube in the versatile size of 18 X 1.75/2.125 inches. Crafted with precision and durability, this 18-inch bicycle tire tube is the perfect companion for your cycling adventures. Made from high-quality materials, it ensures a smooth and reliable ride on various terrains. Designed to fit a range of 18-inch bicycle tires, from 1.75 to 2.125 inches wide, the bicycle tubes offer versatility and compatibility with a wide array of bicycles. Equipped with a dependable Schrader valve, it simplifies inflation and maintenance, making it a convenient choice for cyclists of all levels. Goodyear for exceptional performance and reliability, mile after mile.