Tubeless tire wheels are very thin. The wheel hub of a tubeless tire will be thinner than that of a pneumatic tire. This is because the tire structure of a tubeless tire is special and does not contain gas inside. Instead, the contact surface between the rim and the wheel is used to support the entire body, so thin tires can be used. hub. In contrast, the wheels of pneumatic tires are relatively thick, because pneumatic tires need to be filled with air to support the body, so thicker wheels are needed to withstand the air pressure and body load.