Austrian Hans Hummel designed and built and raced his own bikes.
That combination kept him in the GP championship points, for
more than 10 years! Quite a feat!
Always using Kreidler engines for power but producing cylinders
for bigger twostroke engines as well.
Here are a couple of pics showing his creations.
Early days for Hans Hummel - homebuilt Kreidler racebike.
Hummel crashes.
The Hummel Kreidler of Robert Lavér.