Bicycle Bike Inner Tube 18x1.75 2.125 Straight Valve or 18x1.85 18x1.95 18x2.05 18x2.125 18 Inch

Universal 18 Inch Bicycle Inner Tube: General bicycles innertube designed for front or rear wheel use on 18 inch bicycles Wide Compatibility Range: This innertube will fit the following range of sizes 18x1.75-2.125 or 18x1.75 or 18x1.85 or 18x1.95 or 18x2.05 or 18x2.125 Fits All General Bicycles: Suitable for all general bicycles with 18 inch wheels Schrader Valve Design: Innertubes come with a straight Schrader valve for easy inflation and compatibility with standard pumps Detailed Specifications: Inner Diameter 425 mm / 16.73 inches, Outer Diameter 500 mm / 19.69 inches, Valve Type Schrader (Car Type), Inner Tube Size 18 x 1.75 - 2.125, Valve Angle Type Straight, Wheel Rim Size 18 Inch, Valve Overall Length 31.8 mm / 1.25 inches, Valve Outer Thread Diameter 7.5 mm / 0.3 inches, Valve Inner Diameter 5 mm / 0.2 inches, Valve Thread Length 7.6 mm / 0.3 inches