Thorn Resistant Tube 18 x 1.75/2.125 A/V

Heavy-duty inner tube engineered for durability and puncture protection. The thorn-resistant design protects against sharp debris, thorns, and rough terrain. Ideal for mountain biking, off-road trails, and urban commuting. Compatible with 18-inch wheels and fits tyre widths of 1.75 to 2.125 inches. Features an American/Schraeder valve (A/V) for reliable inflation and compatibility with standard pumps. Reliable performance in demanding conditions.