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First polyurethane skateboard wheel

First polyurethane skateboard wheel
Who
Frank Nasworthy
What
First
Where
United States (Encinitas,)
When
1973
The first modern skateboard wheel – made from polyurethane polymer rather than hard metal or composite "clay" construction – was developed by Californian surfer and skateboarder Frank Nasworthy in Encinitas, California, USA, in 1970–73. A former engineering student, Nasworthy formed the Cadillac Wheels company in 1973 to market his invention, which quickly led to a massive resurgence of skateboarding worldwide.