This 26” bike inner tube fits all 26 x 3.50 26x3.60 26x3.80 26 x 4.0 Fat tires bike(Please kindly confirm that your bike tire is 26inch before you buy). AV35mm Schrader Valve. Our bike inner tubes are made of high quality butyl rubber material. Better air tightness, heat resistance, and durable. Before installing, check to see if the inner tubes are completely sealed by putting them in water, if there are any bubbles, they are already damaged. Please let us know, we will provide 100% refund or Free replacement to you soon.
