Stanton's ebike project.

[Trail Cruiser]

This is version 4.0 in the making by an Aerospace engineering student . You can view his previous versions in the youtube.

 

[Ann M.]

Very clever and detailed; it was neat that he included where things went wrong & the fix (and that brief human moment smacking his shoulder on the handlebars )

 

[Trail Cruiser]

Interesting change of plan and progress.

 

[Trail Cruiser]

I can't wait to see the completed version 4.0. For the meantime, here is the version 3.0 where he came from and then leap frog into incoming version 4.0.

Before that was the version 2.xx.

And the first version.

 

[Trail Cruiser]

This provides a glimpse of how a proper Research and development (R&D) is done with engineering insight and detailed structural analysis. It involves lots of trial and error. After everything appears to be sorted out, it was a bummer that the motor unit was not balanced at high speed, producing enormous vibration and noise.

I would imagine that big name ebike companies spend more time and test their ebikes even more than that (like high mileage test on realistic rough terrains). And that would add up resulting, to higher prices, plus they come with warranties.

In contrast, you can obtain cheaper imitation kits or whole ebikes from alibaba, but then, you might end up doing the R&D yourself to make things function properly.

 

[Trail Cruiser]

Cool youtube display of speed and input power.