It seems that e-bikes are on the rise in Europe as well. More surprisingly, Europe has several manufacturers of high quality e-bikes. The European brands are of notoriously higher quality than Chinese ones. Of course, there might be exceptions.

Provelo has a good summary page (in French) about e-bikes in Belgium and Europe in general. The page mentions several links to European e-bikes sellers and manufacturers.

The Ion Style, a high-end e-bike from Dutch manufacturer Sparta

In North America, European brands enjoy a good reputation, and this is particularly true for vehicles (cars, bicycles, ...). On the contrary, Chinese products suffer from bad reputation (this is one of the reasons local sellers buy Chinese components and rebrand the products as "Canadian").

Selling European brands of e-bikes in China might not be realistic given the higher price and price sensitivity of Chinese buyers. However they might have a good future in North American markets. Conversely, it is very difficult for Chinese e-bike sellers to penetrate the European market, because their low price alone is not a sufficient differentiation factor to capture a large share in a market where consumers are not very price sensitive and clearly favor local brands.