YunSCM 2PCS 20" Heavy Duty Bike Inner Tubes 20x1.50/1.90 ETRTO 40/47-406 AV32mm Valve 20 inch Bicycle Tubes Compatible with 20x1.50 20x1.60 20x1.70 20x1.75 20x1.85 20x1.9 Bike Tire Tubes

Size: 20 inch heavy duty bike tyre tubes 20x1.5/1.90 inch, 32mm (Regular valve). 20"x1.50/1.75/1.85/1.90 fit 20-inch wheel, tire width between 1.50-1.90. Compatible with racing bike/ push bike/ road bike/ off road/ mountain bike tyre 20 x 1.50 20 x 1.60 20 x 1.75 20 x 1.80 20 x 1.85 20 x 1.90 ( ETRTO : 40-406 / 41-406 / 42-406 / 43-406 / 44-406 / 45-406 / 46-406 / 47-406 / 48-406) bicycle tire tubes. High Quality: The 20x1.50/1.90 bike inner tubes are 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 New upgraded thicker inner tube: The bike tubes 20x1.50 20x1.60 20x1.75 20x1.80 20x1.90 weight is 32% heavier than the ordinary inner tube on the market, and the upgrade can be seen to make the inner tube more durable Excellent shock absorption ability: The mtb bike tubes 20x1.50/1.75 /1.85/1.90 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"x1.50"/1.90" 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'' 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 180 days , you can contact us; You need to provide relevant pictures and information so that we can respond quickly and save you valuable time