The secret project of the retiree angered ČEZ. Just don't call it "double pig".

The Druzeta sidecar, originally developed without factory approval, is a unique chapter in Czechoslovak motorcycle history. Designed by retired engineer Jaroslav František Koch, it was produced in collaboration with Drupol. Despite its appealing design, the Druzeta faced challenges due to its weight and handling, limiting its popularity. The sidecar was priced at 4,200 CZK, half the cost of the Čezeta scooter. Today, few original units remain, with one currently up for auction. The term "double pig" used to describe the combination is a modern invention, not historically accurate. Josef Janeček, an expert on Čezeta motorcycles, emphasizes the importance of preserving the original technical documentation for collectors.