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Xx design concept / Brake-Shift-Unit Bike

Xx design concept
Xx design concept

The design concept Xx, an intuitive, hand-to-use circuit-brake unit (3x9) was taking into account lower manufacturing costs, while high-quality product appearance.
The name of the integrated brake/shift levers (3x9) concept Xx reflects the four single, but also combined levers. The trigger operates with the return to center principle, a 2in1 lever (single 9 gears/ combined 3 gears twist) for the two directions of movement.
In the display rotates the gear figure in return to center principle in the direction of
movement of shifting.
The innovative braking system is characterized by parallel lever guiding during the braking process.


HS Coburg

HS Coburg
Integriertes Produktdesign
Coburg, Germany

Professor Wolfgang Schabbach


Fleischmann, Sabine

Fleischmann, Sabine
Schopfloch, Germany

Sabine Fleischmann Johannes Tsopanides