YunSCM 2 pieces, 20 1.50 1.75 tube wall thickness, American

•[20"x1.5-1.9 Bicycle Tube Wall Thickness]: Applicable to 20x1.50/1.75/1.9 bicycles, American style valve 32mm. Suitable for children's bicycles and folding bicycles. The tube air intake has the same specifications as motorcycles and cars.It was easy to just put air in it.You can now use the air pressure gauge you use in your car, making it very easy to manage the air pressure.Note: Please check the tire size before purchasing.The tire size is usually displayed on the side of the outside tire. • [Does not take up space and is convenient to carry]: The Bicycle Tube 20 1.50 has a small volume when folded, so you can carry it with you when you go out and ride long distances, and you can avoid the awkward feeling of not being able to ride after the tube gets punctured. • [High Quality Butyl Rubber]: The 20 1.75 tube made of this material can provide better airtightness and retain air for a long time, so you don't need to blow air all the time. • [New model released, thick design]: In order to meet the needs of customers who often ride bicycles on a daily basis and to further increase the durability of the tube, we have developed a thicker tube that is approximately 25% thicker than the regular tube and has a thickness that can be seen with the naked eye.The tube's explosion resistance and puncture prevention performance have been improved. • 【Budget Savings】: Doing it yourself will save your budget than going to the local store to replace the tube.As a spare bicycle tube, you can avoid the awkward feeling of not being able to ride after the tube bursts. • [Correct installation method]: First, push the tube into the rim to introduce a small amount (20%) of air into the tube.Next, install the tire, make sure the edges of the tire and rim are aligned and the tube is not pinched, and then re-inflate the tube to the correct air pressure.(Please note that if the tube and tire are not inflated together, that is, if only the tube is inflated, or if the tube is sandwiched between the tire and the rim, air leaks and punctures may occur more easily.)