Thorn Resistant Tube 20 x 1.3/8 Presta (F/V) 40mm

• This 20 x 1.3/8" thorn-resistant inner tube is built to last.
• It is made to be reliable.
• It helps prevent punctures where it matters most.

 The reinforced rubber compound resists sharp thorns, glass, and road debris, reducing flats and keeping you rolling. Compatible with Presta (F/V) valves and features a 40mm valve length for optimal fit across standard 20-inch wheel builds. Built for commuters, trail riders, and anyone demanding dependable performance from their tubes.