Heavy Duty inner tube: 20"x4.0"/4.50" TR4A-40L(100-406/114-406) Heavy duty bicycle replacement inner tube, these inner tubes are ideal for a wide range of applications. Enhanced the ductility of the heavy load tyre, so that the scope of application is expanded, Compatible with 20x4.0 20x4.10 20x4.20 20x4.30 20x4.40 20x4.50 tires.
High quality butyl rubber: The 20x4.0 20x4.5 tubes made of high quality butyl rubber composite material, with good air tightness, heat resistance and durability. Every product is rigorously screened before it is delivered to you.
Excellent shock absorption ability :The e-bike inner tubes 100/114-406 heavy, strong, highly durable butyl rubber made from these inner tubes is a perfect shock absorber to reduce vibration and eliminate the shock caused by bumps and rough surfaces on the road or pavement. Heavy Duty butyl rubber for maximum ride comfort - upgrade your ride experience.
Installation:20"x4.0/4.5" bicycle heavy duty replacement inner tube for easy installation and removal. Check the valve position to ensure that the installation direction is correct.
Tip:Before installing the 20 inch fat inner tube, please put the inner tube into the water for inspection, if there are bubbles, it means that it has been damaged, you can contact us. Check the valve position to ensure that the installation direction is correct. Note: The inflatable inner tube should avoid puncture by sharp objects.
We hope to do better in terms of tire quality in order to provide you with better service and satisfactory products; If you have any questions about product quality within a year, you can contact us; You need to provide relevant pictures and information so that we can respond quickly and save you valuable time