The story
Thunderbike was founded in 1985, as a Suzuki dealer named Motorradschuppen (eng.: motorcycle shed) in the small town of Hamminkeln in western Germany. Between 1987 and 2001 the Thunderbike Team was successful at the German racing series Deutsche Langstreckenmeisterschaft and produced many customized sports bikes.
In 2003, Thunderbike began to customize Harley-Davidson motorcycles and started to create self-produced frames, custom-wheels and other parts. They reached the 2nd place at the AMD World Championship in 2006 and became one of the most successful European customizers.
From Wikipedia’s article on Thunderbike, shared under CC BY-SA 4.0.4