Suspension Wheels Loopwheel & Softwheel Home Parts & Accessories Accessories Suspension Wheels SoftWheel state that their wheel's innovative in-wheel suspension technology can help reduce pain and provide a more comfortable ride. 3 suspension arms are built inside the wheel and automatically compress when encountering an obstacle or rough terrain, but remain rigid and strong over flat surfaces The arms are set equidistant around a central hub to provide shock absorption - no matter what the angle of impact is. The suspension arms immediately reset and return the wheelchair – and rider, to a level ride. Standard Specifications Carbon Fibre springs with Hydraulic and Pneumatic damper suspension rams Aluminium hub - to suit 1/2" quick release axles Max Travel: 32mm Carbon Fibre rims Standard 6-tab hard anodised push-rims 32mm clearance required if you have mud guards Wheels are not interchangeable between left and right sides * Wheel weight without pushrim and tyres A Loopwheel is a wheel with integral suspension, designed to reduce vibration and increase performance and provide greater comfort. Loopwheels give you a smoother ride. They are more comfortable than standard wheels: the carbon springs absorb tiring vibration, as well as bumps and shocks. They’re designed for everyday use and are strong and durable. They won’t run as true as a spoked wheel, but they will be a lot more comfortable. Loopwheels are not just a wheel, they’re a suspension system. Loopwheels help people push over uneven streets, rough tracks and gravel paths, with less effort, and the carbon springs give you extra power to get up or down kerbs. They reduce jolting and vibration, by as much as two thirds compared with a spoked wheel. Users report that this helps them manage pain. With standard quick release axles, a choice between 12mm or ½ inch bearings and available in 24″ and 25″ sizes, loopwheels fit most manual wheelchairs. Standard Specifications Carbon fibre Loop suspension Load limit: 120kg Max Travel: 70mm Double wall aluminium rims Standard 6-tab hard anodised push-rims Contact us for available colours * Wheel weight without pushrim and tyres
Rear Loopwheels are about twice as stiff as front installations, and wheels can be used both separately with a spoked wheel, or as a set, plus as the lone form of bike suspension, or in addition to suspension forks. At only around 0.7 pounds heavier than spoked equivalents, Loopwheels make for particularly appealing add-ons to folding bikes, most of which don't bother with suspension systems due to the weight and bulk they pile on.

Great comments and I would like to explain the questions raised, because it is a huge innovation. Wheelchair: Nothing is rigged about it. Two of the cheapest identical Invacare wheelchairs were bought and one was modified with the Air Suspension Wheel technology. Zoltan (the inventor) has never been in a wheelchair before and therefore it may seem a bit clumsy, but definitely nothing was done intentionally. Here is the video of how it works in gravel: https://www.youtube.com/watch?v=A429IzLKbWM&t=2s.
The spokes on a standard spoked wheel hold it in tension. If the spokes lose tension, they start to break and the rim will buckle. A Loopwheel is not held in tension by its springs.