The object
Frank Nasworthy developed skateboard-specific urethane Cadillac Wheels, replacing hard wheels with a more grippy, durable ride. Smithsonian collections document his specifications and the resulting 1970s skateboarding renaissance. A Smithsonian-published 2025 sports-invention volume identifies Nasworthy as retired and still surfing.
01
What Frank did
developed skateboard-specific urethane Cadillac Wheels and their product specifications
02
Why it matters
The new wheels enabled more fluid skating and a generation of equipment designed around urethane-wheel performance.
03
Living-status check
A Smithsonian 2025 publication says Nasworthy, now retired, continues to surf.