The little 1942 Excelsior Welbike Mk2 98cc was made by Excelsior motorcycles at its Tyburn factory for the Special Operations Executive (SOE) as a one-time use, disposable machine that carried ...

In 1923, Arthur O. Lemon left Excelsior to join Ace as their chief engineer so the motorcycle was dramatically improved in the next few years. Six years after the company was officially launched ...