“Twenty-five years after his Well-Tempered Chair, Ron Arad has used a similar process — in which the naturally sprung properties of tempered steel, bolted in tension, gives a natural yield or “softness” – to build a bike with wheels made of sprung steel.
To account for the added flexibility in the materials, Arad’s sprung wheels of steel are in fact a little bit larger that the average bike wheel, says Marcus Hearst, director of the design department at Arad’s studio. But it’s this yield that gives the wheels a slight cushion and makes the wheel work in a practical way. Hearst said it’s a surprisingly comfortable ride, and, ironically, the faster you go, the smoother it is.”
Read more at the brilliant FastCoDesign