Borrani wheels used aluminum alloy rims instead of steel, improving unsprung mass and thus overall performance compared to the original Rudge-Whitworth design. Leadership transferred to the founder's son, Cesare Borrani, in 1937.
The Borrani wheels used aluminum alloy rims rather than steel ones, which led to a reduction in unsprung mass and improved overall performance compared to the original Rudge-Whitworth design. In 1937, leadership was transferred from the founder to Cesare Borrani.