The Zehnder brothers designed and patented a set of steel tubes welded together to replace the traditional radiator design. It was a tremendous success and has remained virtually unchanged since its introduction.
As the business grew, Jakob’s seven sons became more involved. In 1923, the Zehnder brothers bought a small German motorcycle, improved the engine and successfuly launched it into the Swiss market.
The Zehnder family of entrepreneurs began with Jakob Zehnder, born in 1855. In his late 30s, Jakob set up his own workshop to earn a living as a mechanic and bicycle dealer in his home town of Gränichen, Switzerland.
