主权项 |
1. A system, comprising:
a wheel, wherein the wheel defines a first air passage having a first end and a second end, wherein the first end is at an outward side of the wheel; a hub adapter connected to the wheel, wherein the hub adapter defines a tire side air passage, wherein a first end of the tire side air passage is coaxially aligned with the first end of the first air passage; and a valve assembly connected to the hub adapter, wherein the valve assembly comprises a valve and defines a hub side air passage and a tire side air passage, wherein a first end of the tire side air passage of the valve assembly is coaxially aligned with a second end of the tire side air passage of the hub adapter. |