Springs inside the distinctive wheels compress as the rider encounters rough terrain Mr Pearce, who usually designs parts for pushchairs and other vehicles, has spent four years perfecting the idea.
Like a regular pneumatic tire, the ASW is air-suspended, but in this case, it's not by an inflated tube. It's a full hub and wheel replacement that separates the outer tread and rim from the hub using a set of eccentrically mounted, pneumatic air cylinders.

An important consideration when dealing with e-tron is the aforementioned weight. Though smaller than the SQ7 TDI sold in Europe with its heavy V8 TDI engine, the e-tron is still some 400 lbs. heavier. If you go with a wheel that’s not weight rated for your car, you could find yourself easily bending your wheels or even worse. We did our best to find out what we could about the weight rating of the SQ7 wheel and came away confident enough to give it a try. Even still, it is heavier than stock and boasts a wider contact patch, which meant our electric range would suffer.
All parts drawings illustrate only one application of each fitting. In most cases many other applications are possible. The channels shown in the illustrations are P1000, 15⁄8" square, except where noted otherwise. All 9⁄16" diameter holes use 1⁄2" x 15⁄16" hex head cap screws and 1⁄2" nuts – P1010, P3010, P4010 or P5510 – depending on the channel used. Nuts and bolts are not included with the fitting and must be ordered separately.