Austrian Motorcycles

Cless & Plessing Motorcycles

A Brief History of the Marque

Made in Austria 1903-1906

Built in in Graz. Baute, early models were fitted with shaft drive before reverting to the more conventional and considerably cheaper belt drive. The 2.5ps engines were of the firm's own design.

Sources: voz.co.at

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Allen Motorcycle Museum
Allen Motorcycle Museum
Private museum in Boston, MA, with many highly collectable vintage motorcycles for sale.