Air suspension installed directly.
The balloon bike trend started ten years ago with the Big Apple: comfortable cycling without expensive suspension techniques. Air cushion tires are used as natural suspension. At approx. 2 bar, a balloon bike rolls wonderfully lightly and with full spring action. A normal 37mm wide tire needs to be inflated hard to 4 bar to roll comparably well.
Now also balloon bike comfort with the extra reliable 3 mm thick GreenGuard anti-puncture layer.