History

• March 2004
  Martin Buchberger in the gym watching a performance advantage on the stepper to the ergometer: With a heart rate of 140 bpm, he made the stepper 270 watts to 220 watts on the ergometer.
• May 2004
  At the local wood turners workshop formed with the active help of his brothers and his father, the first prototype of a street stepper - a bicycle with Stepantrieb - from ash wood. First test drives demonstrate that a gearbox is necessary, which has a variable transmission ratio on the Stephebelhub.
• August 2004
  Completion of a prototype of a variable transmission ratio - an Gradientengetriebe - has.
• November 2004
  Foundation of Graditech Development Ltd. The following are two prototypes to improve knowledge of ergonomics and the transmission characteristics.
• May 2005
  Invention of the cam gear, which allows a freely configurable translation history.
• July 2005
  Partnership with the Mountain Bike & Forging Hot Chili DART Schorndof GmbH in Stuttgart in preparation for the series. Development of production-Prototypen.September 2006 bodybuddy "the Streetstepper presented at Eurobike in Friedrichshafen, the public.
• September 2006
  „bodybuddy“ the Streetstepper is presented to the general public at the Eurobike Exhibition in Friedrichshafen.
• July 2007
  The Streetstepper the international ISPO brandnew Award winner as the most innovative summer outdoor unit.
• Autumn 2007
  Development work on the Streetstepper model 09, a sporty version of the Street stepper, which has in addition to the automatic cam gear on a 3-speed manual.
• September 2008
  The Streetstepper model 09 is presented at the Eurobike in Friedrichshafen, the public.
• May 2009
  Rollout Streetstepper model 09
• May 2010
  Rollout of the 2010-models: Streetstepper Sport and Streetstepper Easy