The new patent of BMW motorcycle cancels the pivot of the swing arm, and the carbon fiber rear swing arm will become a part of the frame.

BMW has proved itself a pioneer in carbon fiber motorcycle chassis, thanks to the ultra-expensive HP4? Race. Now, BMW motorcycles are studying the next generation frame, which does not need the traditional rocker pivot, but uses flexible carbon fiber.

It is almost certain that BMW will release the latest version of carbon fiber frame S1000R and a limited edition HP4? Race (below) is an innovation of the rear rocker arm on the basis of the previous one. BMW is more experienced than most competitors in the design and mass production of structural carbon fiber. A large number of BMW's automobile series have used carbon fiber, including i8 and i3. More models have used structural carbon fiber components, and their application in motorcycles will become more and more skilled.

BMW's latest patent eliminates the necessity of the pivot of the rear rocker arm by integrating the rear rocker arm into the main frame, thus showing a brand-new design. Carbon fiber can be designed to be rigid in one direction and flexible in the other direction, so that the rocker arm absorbs bumps after bending, but remains rigid in the lateral direction. However, conventional springs and shock absorbers will still be used, so that the suspension can be adjusted, but carbon fiber will provide a certain proportion of spring effect.

This is not a completely new idea. Racing cars have used the flexibility of carbon fiber in suspension design for a long time, and there is usually no pivot where their fork arms connect with the chassis, thus improving strength, aerodynamics and weight.

It remains to be seen whether BMW will continue to adopt the integrated rear rocker arm design. The new patent confirms that the development of high-performance carbon fiber motorcycle frame is still in progress. It is indeed very likely that the heirs of the race will carry this new technology.

This article comes from car home, the author of the car manufacturer, and does not represent car home's position.