Ensure a smooth and reliable ride for your city, trekking, or vintage bicycle with this premium-grade inner tube. It is precisely engineered for 28-inch wheels and is perfectly compatible with the traditional 28 x 1 5/8 x 1 3/8 tire sizes commonly found on urban commuter and hybrid bikes. Crafted from highly resilient, top-quality rubber, it delivers enhanced resistance against punctures and excellent long-term air pressure retention. The tube comes equipped with a traditional 40mm DV (Dunlop) standard bicycle valve. Renowned for its user-friendly design and exceptional reliability, this valve ensures an airtight, secure seal and allows for effortless inflation using any standard bicycle pump.