A Brief History of the Italian Marque
Officine Meccaniche BetoMoto of Milano patented and built the Eureka in the 1940s, an auxiliary bicycle engine mounted within a wheel.
The complete assembly of wheel, engine and tank could be mounted in a few minutes simply by replacing the rear wheel of the bicycle.
The engine was a 55cc two-stroke with gear transmission and engine disengagement device for pedalling.
Weight of the wheel with engine and tank was 9kg.
Source: Moto di Lombardia
N.B. 1. The name Eureka was also given to an Australian motorcycle. 2. A company with a very similar name exists. Their website does not mention any relationship with the original firm.
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