[12 and 12 1/2 X 2.10-2.50 bicycle tube]: Compatible with 12 1/2 X 2 1/4 bicycles and CR202 valve. Suitable for children's bicycles, electric scooters, scooters, electric wheelchairs. Note: Please check the tire size before purchasing. Tire size is usually displayed on the side of the outside tire.
[Does not take up space and is convenient to carry]: 12 2.125 The 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 release thickness design]: To meet the needs of customers who often ride bicycles on a daily basis, and to further increase the durability of the tube, it is approximately 25% thicker than the regular version tube, making it thicker than the naked eye. We have developed a thickened tube with a strong feel. The tube's explosion resistance and puncture prevention performance have been improved.
[High Quality Butyl Rubber]: This material's 12 2.125 tube can provide better airtightness and can retain air for a long time, so you don't need to blow air all the time.
【Budget Savings】: Doing it yourself will save your budget than going to the local store to replace the tire. 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 let 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. (If the tube and tire are not inflated together, i.e. if only the tube is inflated, or if the tube is pinched between the tire and the edge of the rim, air leaks and punctures may occur. Please note that it may become easier.)
Suitable for bicycles with 12 and 12 1/2 inch wheels. Tire width is 2.10-2.50 inches. (Tires common to 12 and 12 1/2 X 2.10-2.50 sections)
The product includes 2 bicycle tubes.
About shipping: The shipment is timely, the package is stored in the Amazon warehouse, and once we receive your order, Amazon will ship your item in a timely manner.
Warm tips for installing tires and tubes:
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). Clean the inside and outside of the tire to prevent the presence of foreign substances such as gravel and impurities, and install it according to the rolling direction of the tire.
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. Insert the tube evenly into the tire with a small amount of air filling (less than 10%), stack the carcass in order and do not fold it inside the tire (folding and inflating it is easy to puncture), the tube and tire together over the steel ring, and check whether the lower tire is completely 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. Installation is complete.
