Before installing the solid tire, it is recommended that you soak the hot water at about 60 degrees for about 3 minutes, which will make it easier to install. Pneumatic Tire Product introduction: 1. The pneumatic tires of 8 1 / 2 × 2 scooter are universal for front and rear wheels, which completely replace the original tires. 2. Compared with solid tires, pneumatic tires have good cushioning, enabling you to navigate on most road surfaces and provide you with a comfortable driving experience. 3. Our pneumatic tires are made of butyl rubber, with good sealing, compression resistance, environmental protection and durability. 4. We designed the air chamber to make it explosion-proof. 5. The weight of pneumatic tire is about 100g. The surface of the pneumatic inner tube is coated with talc, thus avoiding the overheating of the tire and the adhesion between the inner tube and the outer tube, thus prolonging the life of the inner tube.