@crisisingot I'm not sure if you can call them the most climate-friendly way - they still use (probably Li-Ion, never checked) batteries in them, which are quite costly for the environment to extract and to dispose once their life cycle has ended.

I might have an unpopular opinion (as many people brag to say nowadays), but I think we should contain Li-Ion batteries to cars until battery technology matures enough in order to get something less polluting powering our stuff. Otherwise, in 10-20 years (or earlier) we will see a lot of such batteries disposed.

So no, I think I'll keep my non-assisted bike going forward even though I have to break a sweat sometimes (I have gears on it, tho, so it's easier, plus my city is not that hilly).