BiAnYC 1-PC 20 Inch Fat Tire Tube 20" x 4.0"- 4.5" AV32mm Butyl Rubber Inner Tube Compatible with 20x4.0 20x4.5 Schrader Valve Inner Tube for E-Bike Electric Bicycle Road/Mountain Bike Inner Tube

• INNER TUBE SIZE: Schrader(America) Value 20x4.0/4.5"AV32mm inner tube. Tire width 4.0" to 4.5". Designed for 20x4.0, 20x4.1, 20x4.2, 20x4.3, 20x4.4 20x4.5 tire, the inner tube fits perfectly to improve the overall performance of your tire bike, ensuring a smooth and comfortable ride, suitable for electric bike, mountain bike, gravel bike, city bike, etc. QUALITY 20"x4.0"/4.5" BIKE TUBE: Made of high-quality butyl rubber composite material, with good air tightness, heat resistance, durability. SMOOTH RIDING EXPERIENCE: Our 20"x4.0"/4.5" tire inner tube have a sturdy construction and excellent shock absorption for smooth and comfortable riding on all surfaces, ensuring your ride is smoother and more enjoyable. EASY LNSTALLATION: Fast and easy installation allows you to spend more time riding and less time changing inner tube. CUSTOMER SUPPORT: Please feel confident about your purchase, our team is ready to assist you with any questions or concerns, please feel free to ask us for help.