Dura Tec

Duratec is an exclusively Czech company founded on its own development and handmade production of frames from aluminum alloys and carbon. The company offers frames and bicycles for all cycling disciplines. The company reached the top mainly due to a large number of interesting technologies and innovations.

One of them, for example, is AFCF, which stands for Accurately Fitted Continuous Fiber. This is a production technology for making composite monocoques. This production technology was developed by the Duratec Development Center and has globally surpassed all processors of carbon fibers in the cycling industry. AFCF allows for the production of monocoques with a change in geometry, meaning customized monocoques!

Another is the carbon element CEE (composite elastic element) developed by the Duratec Development Center, which is a unique solution between solid and suspended frames. In the case of using CEE, we do not speak of suspension, but the element functions as DAMPING. When the element in the rear structure of the frame is loaded, it provides damping in the range of 1-3 mm, depending on the rider's weight, which positively affects riding on rough terrains. The bike has much greater stability downhill, you can afford more on hard terrain, riding over roots, but at the same time in ascents, you do not lose energy because the frame behaves like a hardtail. The Canner CC1 model with an integrated CEE element is designed for riders up to 90 kg.

The frames are hand-welded and the weld is created in four steps. In the first step (fig. 1) the tubes are joined by spot welding. In the second step (fig. 2), the welder creates a weld around the circumference of the tube. The next step is the spreading of the weld metal (fig. 3). After completing the welding, the weld is hand-polished (fig. 4), which removes the surface tension of the weld and achieves a very compact appearance. In the case of welding Duratec frames, it is not the typical bead welding done by a robot, but a quality connection of the tubes by welding through which we create an optically very elegant joint of high strength.

Lastly, we can mention the routing of cables for the derailleurs inside the frame, which places minimal maintenance demands on the frame and makes it much easier to clean the frame from mud, as there are no additional stoppers holding the cable or housing. The cables are pulled through Teflon tubes stretched inside the frame, with their entry located on the underside of the down tube. The exit from the frame is very close to the components, i.e., the front derailleur and rear derailleur. The lifespan of the routing is lifetime, thanks to Teflon's excellent friction properties. Replacement occurs only during a complete frame repainting service, during which they are retightened into the frame after the service is completed.