The tubeless tire (see figure (1 - rubber seal layer 2 - bead rubber seal layer 3 - valve 4 - rubber seal gasket 5 - valve cap 6 - rim)) is similar to the tubeless tire in appearance and structure, except that it has no inner tube and cushion belt, and air is directly pressed into the outer tube, and its sealing is ensured by the outer tube and rim. The inner wall of tubeless tire is attached with a rubber sealing layer with a thickness of 2-3 mm, which is specially used for air sealing. Some of them are also attached with a self-adhesive layer made of special mixture below the layer. When a tire is perforated, the self-adhesive layer can bond the punctured holes by itself, so this tire is also called a tubeless tire with self-adhesive layer. There is also a layer of tire bead rubber sealing layer on the outer side of the tire bead to increase the airtightness of the tire bead and the wheel rim. The bottom of the wheel rim is tilted and coated with a uniform layer of paint. The valve is directly fixed on one side of the wheel rim, with a rubber gasket used for sealing and a nut tightened for sealing. The rivets for riveting the wheel rim and spoke are inserted from the inside and coated with a layer of rubber.

The advantages of the tubeless tire are that it will only fail in the case of blasting, but the air leakage is slow in the case of perforation, and the tire pressure will not drop sharply, so it can continue to drive; Due to the lack of inner tubes, friction generates less heat and dissipates heat quickly, making it suitable for high-speed driving; In addition, it has a simple structure and smaller mass.

The disadvantage of tubeless tire is that the sealing layer and self-adhesive layer are easy to leak, and it is difficult to repair on the way. In addition, the self-adhesive layer can only be bonded when the perforation size is not large. In hot weather, the self-adhesive layer may soften and flow downward to destroy the wheel balance. Therefore, tubeless tire without self-adhesive layer is generally used. Its outer and inner walls only have a sealing layer. When the tire is punctured, it is tightly wrapped around the puncture object due to its compression state, so it can remain airtight for a long time. Even if the puncture object is pulled out, it can temporarily maintain the pressure inside the tire. Generally, tubeless tire is widely used in cars with deep rims.