Jingcheng butyl rubber inner tube is guaranteed for 200 days once inflated. Butyl rubber inner tube has better air tightness than other inner tubes, butyl rubber inner tube has strong air tightness, air tightness is several times of the ordinary inner tube, one inflation for more than half a year. Durable, butyl adhesive is not easy to aging, strong oxidation resistance, use more durable. Comfortable to use, good elastic buffer, especially the bump and bump road buffer effect is better, good inner tube also let the use of high resistance of outer tube. All copper air nozzle, high temperature leakage resistance linear smooth, light weight air nozzle, excellent gas closing performance. Good aging resistance products can be stored for a long time, not easy to aging and cracking. Tear resistance to prevent further damage. Even if it is punctured, it won't open a long hole, making it easier to repair. Resilience can be prolonged and does not decline, effectively alleviate turbulence from the ground, improve comfort.