The only other way to get wheels to turn is either roll them freely unbound to anything, or attach them to a rotor. You can adjust the suspension settings to make them ridged, and you can use vertically oriented suspensions to prevent side wobble as if it was on rails.
Ron Thompson is a retired mechanical engineer. He’s built a 2 wheeled bent he believes is the 4th major breakthrough in bicycle design. That’s a lofty assessment but you owe it to yourself to hear him out. The ability to recruit supplemental hand power on a recumbent bike is the intriguing innovation he’ll discuss with us today.

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SoftWheel also claims that this movement measurably decrease the energy lost from suspension movement. Their simulated track testing equated these gains to 16.4% extra energy that was not lost in a traditional suspension system. That of course means saving energy for the rider, and results in faster rolling. We’ve seen conceptually similar solutions like the carbon leaf Loop Wheels without damping, and even a smaller amount of suspension built into Gokiso’s hubs, but these Fluent wheels are certainly more tech-heavy.