My eZee rear hub motor came from Grin Technologies and I installed it myself. Here is a video showing the installation process on a bicycle. It is similar on a trike.

I did not need the torsion bar as the eZee hub motor does not have anywhere near enough power to need it.  I had to spread my rear dropouts further apart to fit the unit in. The wheel my eZee motor was laced into did not hold up. I had to replace it . I bought a much stronger BMX rim and had it laced up by a professional wheel builder at my LBS. It has held up fine. After my experience with BionX and Golden Motors I have been well pleased with the eZee hub motor.  And then when I tried the Tongsheng crank drive motor which greatly disappointed me the eZee was a joy to go back to. The only disappointing thing about the eZee is I don’t have pedal assist … only a hand throttle. Oh I bought pedal assist when I first got the eZee hub motor kit. I paid a lot of extra money for it and still had to pay more for a different crankset as my Catrike crankset would not work with the torque sensor. Then I paid more to have my LBS install the torque sensor for me (with my assistance) only to discover that the torque sensor didn’t work. Grin Technologies sent me a different one but it required an even different crankset which we could not find available so I never got the torque sensor installed. It was just a lot of wasted money and effort. So during the 4 years I have had the eZee hub motor I have only had a hand throttle. Now I have gotten good at using it … so much so that I can pretty well duplicate what pedal assist feels like. One thing about it just buying the hand throttle would have saved me several hundred dollars which I ended up wasting. My advice to anyone wanting pedal assist is to by a unit with it built in. The eZee motor does not have it built in and the separate torque sensor which goes into the crankset bottom bracket is not at all practical. If I knew then what I know now I never would have bought it.



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Author: Steve Newbauer

I have a few current blogs (tadpolerider1, navysight, truthtoponder and stevesmixedbag) so I am keeping busy. I hope you the reader will find these blogs interesting and enjoy your time here. Feel free to email me at tadpolerider2 at gmail dot com (

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