#Beadlock wheels have an extra ring piece that fits along the perimeter of the wheel face. When installing, you slip the tire lip in between the bead and the #bead lock ring and tighten with a series of heavy-duty bolts.
Everything You Need to Know about Beadlock Rims

Air #management systems monitor and control cabin temperature, creating a comfortable flying experience for passengers and crew members. They are integral to an environmental control system (ECS), which ensures the air supply, optimal cabin pressurization, and thermal management of the aircraft.
Air Management Systems – bossairsuspension.com.au