BMW i has announced their patent for a "drive unit swing arm" will be going into production on the Heisenberg XF1 eBike.

BMW i has announced their patent for a "drive unit swing arm" will be going into production on the Heisenberg XF1 eBike.

According to the automaker, the drive unit swing arm allows the drive train "to float freely, eliminating the need for the conventional chain tensioner. This permits, for the first time, the combination of a rear suspension and the durable, maintenance-free carbon belt drive on full-suspension eBikes, resulting in outstanding propulsion and handling characteristics."

While BMW patented the idea, they decided to release it for external use as there was "no longer any immediate use" for it.  However, the Heisenberg XF1 will play tribute to BMW with a small logo that says "Concept by BMW i" on a mounting bracket.

Check out the press release for additional information

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Heisenberg XF1 eBike to feature a drive unit swing arm developed by BMW i