YunSCM 2pcs, 700 28c Tube, Best Choice of American Style

• [700X25-32c Bicycle Tube]: Suitable for 700X25c/28c/30c/32c bicycles, American style valve 48mm, the best choice for high rims.Suitable for road bikes and cross bikes.The tube air intake has the same specifications as motorcycles and cars, so it was easy to fill with air.You can now use the same air pressure gauge you use in your car, making air pressure management much easier.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. • [High Quality Butyl Rubber]: This material's 700 32c tube can provide better airtightness and can retain air for a long time, no need to hit the air all the time. • 【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. • 【Easy to install】: Includes 2 high quality plastic tire levers, making it easy to replace the tube.Helps replace tubes. • [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.)

This bicycle is suitable for a wheel diameter of 700mm.Tire width is 25~32mm.(Tires common to the 700X25c-700X32c section)

Items included: 2 x 700x25/32c bicycle tubes, 2 x tire levers.

How to install tires and precautions:

1. The rolling direction of a tire is the mounting direction of the tire (some tires are marked with an arrow, and the direction of the arrow is the rolling direction of the tire).First, clean the inside and outside of the tire to prevent the presence of foreign substances such as gravel and impurities, and then install the tire according to its rolling direction.

2. After installation, inspect whether the bead (tire edge) is uniformly symmetrical, the bead must be outside the bead in all places and parallel to the bead in all places.Otherwise, there will be blurring when driving.

3. The tube should be evenly inserted into the tire with a small amount of air filling (less than 10%), the carcass should be stacked in order and not folded inside the tire (folding and inflating it is easy to puncture), the tube and tire should be put together on the steel ring, and inspect whether the lower tire is all packed into the tire, and there should be no small steps between the tire and the steel ring.You can then start aerating the tube.The installation is now complete.