✅ [Scope of application]: Outer tire size 20x1 1/8 30-451, applicable to road bikes, small wheels, cross bikes with 60mm French valve. We provide instant gratification solutions. Avoid using sharp tools to prevent tools from damaging the tube. Tire installation method and precautions: 1. The tire rolling direction is the tire installation direction (some tires are indicated by 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. 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. The installation is now complete.


Product model number: ‎20x1 1/8 30-451
Color: ‎Black
Material: ‎Synthetic rubber
Battery included or built-in: ‎No
Diameter: ‎20 inches