YunSCM 2pcs, 700 25c tube wall thickness, Presta valve 48mm

• [700x18-25C Bicycle Tube]: Applicable to 700x18c/23c/25c bicycles, Presta valve 48mm, the best choice for high rims.Suitable for road bikes and cross bikes.Note: Please check the tire size before purchasing.Tire size is usually displayed on the side of the outside tire. • [Does not take up much space and is convenient to carry]: The 700 25c tube has a small volume when folded, so you can carry it with you when you go out and run long distances, and you can avoid the awkward feeling of not being able to ride after the tube gets punctured. • [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. • [High Quality Butyl Rubber]: This material's 700 23c tube can provide better airtightness and retain air for a long time, so you don't need to blow air all the time. • 【Budget Savings】: Doing it yourself will save you more money than going to the local store to replace your tires.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.)