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. Six thousand people attended its first meet. In 1925 Penrith Speedway was declared the world's largest dirt track. Then in 1928, it was declared one of the fastest dirt tracks where drivers could get up to 90 miles per hour.The last meeting of the Speedway was held in May 1941.
