YUNSCM 700c Bike Inner Tube 700x18-25C

Heavy duty replacement inner tube for 700c bicycles, fitting 18C to 25C tire sizes with a 48mm Presta valve. Ideal for road, city, gravel, and hybrid bikes, this tube enhances flexibility and provides excellent shock absorption due to its durable butyl rubber construction. The increased thickness offers superior air tightness, maintaining stable tire pressure for 6-9 months and reducing inflation frequency for improved safety. Its ultra-durable design boasts higher puncture resistance and extended service life, minimizing replacement and maintenance. Compatible with mountain, road, cruiser, and electric bikes, it supports longer driving ranges and loads. Valve core is not removable. Inspect for damage before installation.