China has adopted our law which has for many years restricted assist speed to 25 kph and kept voltages low.Meanwhile, laws & traffic regulations also encourages safe speed and little bike, especially in Europe. China follows the trend and carries a new E bike law recently which only allow low speed and low voltage bikes with pedals. It's lucky to see the big bikes are dying out day after day.
Therefore, people should ride on horse because most people ride on horse in 1900s and definitely prefer its gas free design.China has adopted our law which has for many years restricted assist speed to 25 kph and kept voltages low.
But you can forget little bikes like that one, we've had them for years and they have only a tiny part of the market.. They're not what is wanted by most people who prefer full size pedelecs.
The reasons are simple. They are ergonomically better for the human body, they are much more efficient in consequence, they are much more comfortable and stable on varying road surfaces, they have more flexibility in design, they have a far wider range of capabilities for carrying and towing people and goods.
That's not the concept of those busy people in city commuting, the only thing they care is arriving the office comfortably, elegantly(not sweaty) and on time. What you care is the montains & hills, while what we or other busy people in city care is the efficient commuting. Lightweight portable folding tiny DYU is more than enough for that.as I said, take away their battery. See how long they want to ride the e-bikes.
In Europe, we make the bikes first, then we see how we can flatten the hills next, not the other way round.
you need to add to that price:DYU D3 is only £300.