March 2004Martin 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 2004A first prototype of the Streetstepper is manufactured in the wood turners workshop of Martins brother.
November 2004Foundation of Graditech Development Ltd. Several prototypes are made to improve knowledge of ergonomics and the transmission characteristics.
May 2005Invention of the cam gear, which allows a freely configurable translation history.
July 2005Partnership with the Mountain Bike manufacturer Hot Chili & DART in Schorndof/Germany.
September 2006„bodybuddy“ the Streetstepper is presented to the general public at the Eurobike Exhibition in Friedrichshafen.
July 2007The Streetstepper is awarded as the most innovative summer outdoor unit (ISPO brandnew Award).
Autumn 2007Development 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 2008The Streetstepper model 09 is presented at the Eurobike in Friedrichshafen.
May 2009Rollout Streetstepper model 09
May 2010Rollout of the 2010-models: Streetstepper Sport and Streetstepper Easy
Rollout of the MTS 26, a Streetstepper with an enhanced gear system (full Mountainbike range), suspension fork and hydraulic disk brakes