MORE DURABLE: The 20x2.125/2.40 bike tube is made from premium butyl rubber. It features better sealing performance, ozone resistant, anti-aging, shock absorption and electrical insulation merits
Universal fit for Kids, Mountain, Road, BMX, and City bikes: Designed specifically for 20-inch wheels, this tube is the perfect spare or upgrade for junior mountain bikes (MTB), children's bikes, BMX freestyle, city commuters, and folding bikes. Whether tackling rugged trails or smooth roads, it delivers reliable performance across all riding styles.
Safe Bike Tires: The butyl rubber tire tube replacement absorbs shocks on bump road for a comfort and safe ride. It is heat resistant and stands wear and tear for daily use
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.
Easy To Install: Installation is quick and easy. Please follow inflation guide when airing a tire from a complete flat. Hassle free to replace your old tire tubes within minutes which is time saving and efficient
