20x4.0 20x4.5 Self-Sealing and Self-Healing E-Bike Fat Tube,20" Replacement Fat Bicycle Inner Tube (Single) Reliable 20 x 4.0-4.5 Inner Tube AV32mm Schrader Valve for Road/Mountain Cycling Scenarios

• Multi-Compatibility——This 20x4.0/4.5 Self-Sealing and Self-Healing inner tube is suitable for most mountain bikes, road bikes, urban commuter bikes, off-road bikes and other models. Whether you are a road rider who pursues speed or a mountain biker who loves adventure, this bicycle inner tube can be your best partner
• Reliable And Durable——Made of high-quality butyl rubber material, strict production process control and careful material selection ensure the heat resistance, aging resistance and elasticity of the inner tube, which can withstand various pressures and frictions in daily riding, ensuring the safety and comfort of riding
• Good Air Tightness——The inner tube has excellent air tightness and is compatible with a variety of wheel sets. Whether it is the slender rims of road bikes or the sturdy hubs of mountain bikes, it can be easily adapted to ensure good sealing under various road conditions, providing stable and reliable protection for your cycling journey
• Lightweight And Easy To Carry——The single-pack design is light and easy to carry. In case of emergency when riding outside, you can always take out the spare inner tube for replacement, reducing the troubles of the cycling journey and making your journey unimpeded
• Service Guarantee——If you have any questions or problems during use, you can contact our customer service team at any time. We will provide professional advice and solutions as soon as possible to make your shopping experience more pleasant and satisfactory
• Please note: This self-sealing bicycle inner tube, when the tire leaks, the liquid inside the inner tube will quickly fill the damaged small hole, under normal circumstances, it can be repaired and sealed in a few seconds. It can be used normally at temperatures above -15°C. Please keep the liquid away from the valve when inflating or deflation

1 pc 20x4.0/4.5 32mm Schrader Valve Self-Sealing Fat Bike Tube