Rear suspension was by a single transverse-leaf swing axle, an arrangement, that unless ameliorated by any of several options, can allow rear tires to undergo large camber changes during fast cornering, leading to oversteer – a dynamically unstable condition in which a vehicle can lose control and spin. As did many manufacturers who used a swing axle arrangement (e.g., Mercedes, Renault, Volkswagen]], Triumph would later modify the rear suspension. In 1970, the rear suspension was decambered, by incorporating what Triumph called a "swing spring". One leaf was eliminated from the stack and only the bottom leaf was attached rigidly to the differential. The remaining leaves were mounted to pivot freely — thereby eliminating the worst characteristics of the original swing-axle design.