Made in Germany conventional

Made in Germany at Urwahn

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< 0 km

Research and Development

Tubing

Tube Cutting

Frame building

3D-Printing

Coating

Final assembly

Certification

Frame manufacturing in Taiwan

Final assembly in Germany

Research and Development

During the development process of our innovative Urwahn Bikes, we not only focus on the users’ needs regarding functionality, performance and reliability, but also understand the value of aesthetic design – axioms which provide the basis for our product development process. We are committed to the phased design method of Integrated Design Engineering when developing our products, because its dynamic approach allows for the application of interdisciplinary methods, know-how, processes and tools. Therefore, we are confident in our ability to generate qualitative products effectively and efficiently, while respecting the human being as user (human-centric) and considering the whole product lifecycle (sustainability and economic viability).

Tubing

Our unique teardrop shaped, high tensile CrMo-steel tubes are drawn using the seamless technique to achieve a wall thickness of below 0.9 mm. This particular shape allows for an interlocking form fit of our frame parts and differs from generic tube profiles in its appearance. A further advantage of this tube shape is given by its reduction of torsional force in the joint spots. This improves frame stiffness and mechanical strength in critical joints when compared to generic round tubing.

Tube Cutting

Our delicate tubing is cut by automatic high-precision machines – a factor of paramount importance for seamless transitions on the steel frame. The achieved quality of our high-precision abrasive cutting is class leading, especially regarding accuracy, perpendicularity and burr formation. This ensures highest quality standards for our ready-to-build tubes, which keeps our frame builder happy.

Frame building

All previously fabricated frame parts are gathered at our regional frame builder. After quality assurance, the parts are traditionally hard soldered by hand. This is followed by a second quality assurance step to inspect the soldering joints, after which they are smoothed out. These steps all contribute to the distinctive nature of our steel frame appearing seamlessly, as if from one piece. The frame build itself also reflects our understanding of quality standards. We utilise first-class silver solder in the low-temperature (<700°C) soldering process in order to reduce any stress on the material. Every Urwahn steel frame is bound to very tight process tolerances, allowing a maximum deviation of 0.2mm – German quality yet to be matched.

3D-Printing

The highly complex and thin-walled connecting elements of our innovative Urahn steel frame are realized using state-of-the-art 3D printing technology. Applying the generative laser melting process (Selective Laser Melting), the connecting elements are built up in a powder bed of previously atomized, high-strength steel in layers. The individual metal layers are selectively fused together by means of a powerful laser. By implementing 3D-printing into the manufacturing process of our complex connector parts we have accomplished a very short production time and bypassed the need of costly tools. Additionally, this enables us to avoid any restrictions regarding part geometry. The result can be seen in the many integrated technical gadgets, like our LED light system. For this reason, we are proud to call ourselves technology pioneers of the bicycle industry, which we back by setting many technical standards.

Coating

„Less colour for more understatement“ – inspired by the colour patterns of cosmopolitan cities our spectrum of colours resembles urban shades and emphasizes the unique character of our Stadtfuchs. Powder coating is our process of choice when it comes to colouring. Electrically charged powder particles are applied to the steel frames surface, after which it is heated in an oven. This forces the particles to undergo chemical reaction forming a coherent surface coating. For high durability, all Urwahn steel frames are coated with a double-layer finish, to ensure resilience against knocks and weather conditions. By the way, this method of coating is very eco-friendly and forward-looking, since there is zero emission, no need for solvents and excessive powder is almost entirely reusable.

Final assembly

Every Stadtfuchs is assembled with love and care by hand, near its cradle in Magdeburg. Of course, this process meets the same high-quality standards as every other step in production. Therefore, it is no coincidence, that each Stadtfuchs is assembled single-handedly. Final quality assurance makes sure to, that your Stadtfuchs is in mint condition and ready to roll, before it is send on its way to the urban jungle. The main advantages of having assembly stage at close distance are high flexibility and transparency, so that custom adjustments and requests can be met in cooperation with our partner.

Certification

In cooperation with EFBE Prüfinstitut we have put our innovative steel frame to the test in accordance with international safety standard DIN ISO 4210. The test series included five different load case scenarios, in which a 10-year product use with vertical and horizontal force influences of over 100 kg was simulated. Our Urwahn steel frame has passed all test series without restrictions. Especially our rear triangle clearly showed its elastic properties during the test series, which guarantees you more riding comfort and dynamics in the urban jungle.

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