2018-04-15. Several improvements have been made to the original prototype. The most important one is that we have changed
to use a hub motor in the back wheel. This makes driving almost completely silent and reduces losses.
OMotion ETR now has a hub motor
![](https://i0.wp.com/media2.omotion.se/2019/03/hub-motor.jpg?fit=395%2C382&ssl=1)