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Italian Motorcycles

Colombo Motorcycles

A Brief History of the Italian Marque

Colombo moto d'epoca

Nella sua officina di Abbiate Guazzone, Ercole Colombo, nato a Gerenzano nel 1908, insiene ad un paio di collaboratori, realizza un motore di 250 cc con distribuzione a valvola rotante.

Questo sistema di distribuzione viene anche applicato ad un motore Ariel 250. Il sistema di distribuzione viene brevettato e la moto partecipa ad alcune gare raggiungendo una punta velocistica di 148 km/h.

Il sistema suscita l'interesse di molti ed ha diversi contatti anche con tecnici tedeschi della Porsche.

Purtroppo non se ne fa nulla e l'avventura di Ercole Colombo finisce quando trova la morte collaudando una sua moto.

La moto Colombo รจ esposta al Museo Frera della Motocicletta di Tradate


Born in Gerenzano in 1908, Ercole Colombo served his apprenticeship with Moto Frera before establishing a workshop in Abbiate Guazzone where he and his small team created a 250 cc rotary valve engine, the advantages of which are the considerable reduction of reciprocating parts and subsequent lost energer. The machine was first presented in 1947, with a second version appearing in 1950. The distribution system was patented and the machine entered competition, achieving a top speed of 148 km/h.

The system aroused the interest of Porsche engineers in Germany but unfortunately there was no positive outcome.

The rotary valve operation system was also applied to an Ariel 250 engine.

Ercole Colombo, who for many years worked as a development engineer and test driver for Alfa Romeo, suffered a fatal heart attack in 1957.

The Colombo motorcycle is exhibited at the Museo Frera della Motocicletta di Tradate. (Via Zara, 37, 21049 Tradate VA, Italy)

Sources: Moto di Lombardia, inmoto.it, motorcycleheritagefmi.it

Note: There is also famous motorsport photographer by the name of Ercole Colombo.



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