YunSCM 2 Pack 20" Bike Tubes 20x1.75/1.95/2.125 ETRTO:47/57 406 AV33mm Schrader Valve Bicycle Inner Compatible with 20x1.75 20x1.90 20x1.95 20x2.0 20x2.10 20x2.125 Mountain Tyre

Heavy Duty inner tube:20"x1.75"/2.25" AV32mm(45/57-406) Heavy duty bicycle replacement inner tube, 20" inner tubes are ideal for a wide range of applications. Enhanced the ductility of the heavy load tire, so that the scope of application is expanded, Compatible with 20x1.75 20x1.90 20x1.95 20x2.0 20x2.10 20x2.125 20 x 2.20 20 x 2.25 tire tubes Excellent shock absorption ability ：The 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. More Air Tightness: Adopting high elasticity and high quality butyl rubber and EPDM rubber, the thickness is increased by 40%, the air tightness of the inner tube is increased by 200% compared with the ordinary butyl inner tube; the tire can continuously maintain a stable inflation air pressure state after inflation, which dramatically reduces the frequency of inflation, and the good air tightness helps to keep the pressure of the tire stable, which improves the driving safety and efficiency HEAVY DUTY- Ultra Durable: Our heavy duty inner tubes have higher puncture resistance than ordinary inner tubes, and the thicker body can withstand more friction and wear, thus extending the service life of the tube, reducing replacement frequency and maintenance costs. And in long-term use. This heavy duty inner tube is compatible with the corresponding models of mountain bikes, road bikes, Cruiser bikes, electric bikes; At the same time, the increase in thickness can meet the needs of the longer driving range and load of the prevailing electric bicycles. Package Contains: 2PCS heavy duty bike tubes 20X1.75/2.25 inch AV32mm Schrader Valve. Easy to install and remove, and check the valve position to ensure that it is installed in the correct direction Tip：Before installing the 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 Important Note: When changing a bicycle inner tube, be sure to add a little air before installing it. This gives it form so it doesn't get twisted or bunch up which may cause a pinch flat. Inspect for an even bead of the tire to the rim on both sides