PURPOSE: A tubeless tire assembly is provided to minimize the height of a wheel by forming an air-injector on the sidewall of the tubeless tire. CONSTITUTION: A tubeless tire assembly includes a tubeless tire(10), a wheel(20), and an air injector(30). The air injector injects air into inside the tubeless tire. The air-injector is formed on the sidewall(14) of the tubeless tire. A convex part(14a) is formed on a sidewall part on which the air-injector is formed. A sealant is applied on the peripheral surface around the air-injector.
