Set of 20 Bicycle Tire Tube Thick American Valve Tire Bicycle Tire Fat Bike Tire Mountain Bike Electric Bicycle Tire 2, 4.0 Tire, 20x4.0 + 32mm,

---------------------------------------------------------------------- 【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction. 【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary. 【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product. 【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. ---------------------------------------------------------------------- ✅ [Ultra Durable Latest Design Folding Tire]: Latest design folding tire, vibration convergence is faster and the ground feels smoother. The 20x4.0 tire is made of high quality rubber material and 60TPI high knitting yarn, which has strong grip and strong wear resistance. Adopts a thick tube to further increase durability. ✅ [Scope of application]: Applicable to mountain bikes, electric bicycles, and fat bikes with outer tire size 20x4.0 and American style valve 32mm. Tire pressure: 5-30PSI. Note: Please check the tire size before purchasing. Tire size is usually displayed on the side of the outside tire. ✅【60TPI High-end Product】: Compared to ordinary 30TPI tires, 60TPI 20x4.0 tires have higher elasticity and comfort, and lower slip resistance. ✅ [New release, 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 is visible to the naked eye. The tube's explosion resistance and puncture prevention performance have been improved. ✅【Foldable】: 20 4.0 tires and bicycle tubes are all foldable, and after folding, the volume is small and easy to carry, and you can put it in your bag and use it as a spare tire for long distance trips. ✅【Budget Savings】: Doing it yourself will save your budget 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 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. (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.) Fits 20x4.0 mountain bikes, electric bikes, fat bikes, wheel diameter 20 inches, width 4.0 inches. The product includes 2 x 20x4.0 bicycle tires and 2 x 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. How to install tires and precautions: 1. Tire rolling direction is the tire mounting direction (some tires are marked with an arrow, the direction of the arrow is the tire rolling direction). 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.