The Western Suburbs Motor Cycle Club approached Sydney Smith for a loan of the paddocks, known as Belmore Park, situated to the west of Smith's home, Thornton Hall. In 1925, Smith and his family floated Penrith Speedway as a public company. In 1925 Penrith Speedway was declared the world's largest dirt track. The last meeting of the Speedway was held in May 1941.
