What are the non-negotiables when it comes to eBike portability - is it really necessary for an eBike to be incredibly lightweight and compact, or are there scenarios where a slightly heavier, less portable option would be just as suitable? Does the need for frequent transport depend entirely on the intended use of the eBike, or are there some riders who will always prioritize portability regardless of how often they plan to move their bike? How much of a compromise is there between portability and other desirable eBike features, like power and range? Are there any eBikes on the market that successfully balance these competing demands, and what are the key design features that make them more or less portable?