A new standard for a new e-bike world.


Please, read carefully the Terms of the Agreement before apply for license.


If you have any doubts, do not hesitate to contact us.

Why ETOR Drive

The ETOR Drive name responds to the major goals ROTOR intended to fulfil with the technology we developed:
E: focused on ebike motor systems, created to withstand the highest loads required by the exponentially growing ebike market in all disciplines, including the most aggressive ones
TOR: high performance of the TORque transmission interface developed by ROTOR
Drive: as the crankset is major contributor to the Drive train integrated in the e-motor or Drive unit.
ETOR Drive presents the following advantages:

Aluminum suitable reducing weight

Increased fatigue resistance and drive train components lifespan

Certainty for axial position ensures clearances with mobile parts

Easy quality control ensuring compatibility between parts manufactured by different companies

Improve manufacturing repeatability of axle ends and crank arm interface

License procedures ensures reliability of the standard