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Your cart is empty.We are tire experts with over 20 years of experience in the industry, and we can recommend the most suitable products for you. When your wheel is flat, do you throw it away? Instead, replacing it with a new inner tube of the same size can save you money and be environmentally friendly. Our 4.10/3.50-4 inner tubes are made from BUTYL synthetic rubber using motorcycle inner tube formulas that contain high levels of butyl rubber - not fake! They're top-of-the-line in this field! *Butyl inner tube has excellent air retention performance, its air retention rate is more than ten times that of natural rubber; *The use of butyl rubber inner tube can extend the service life of the outer tire, reduce rolling resistance; *Butyl inner tube has excellent tear resistance, heat resistance, all-weather adaptability and self-repair ability, excellent performance in harsh environment; *Identification of true and false butyl tubes can be done by using the blue line. * In addition, butyl rubber products can effectively absorb vibration energy. Intimate accessory bag:Most of the time tire air leakage is caused by the loose valve core, valve nozzle wrench can help you quickly repair the valve core position or replace the valve core