Standard tyre fitment was a 450-19 crossply tyre.
The Nine was a hugely successful small sporting car in the 1930s, available as a roadster, tourer, saloon, and racer. Versions such as the Kestrel, Lynx, Falcon and Imp maintained public interest, as the car were updated during its long life. It had a highly successful competition career too, which continues to this day.