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Thanks for the kind and valuable advice. Bigger 16-inch size DYU will be available soon.

It's a concept, not a physical problem, and the wheel size of e bike is ok to be smaller when riding. The rider group may be small at the beginning but it keeps growing.

DYU would try hard to reach that number and get banned. But before that, the factory boss, many agents & wholesalers could become billionaires already. Hoverboard has achieved many young entrepreneurs' dream.

It sounds scientific, but the optimal wheel size should be calculated by following 5 factors- the wheel weight, rider weight, height, vehicle & speed according to your theory. So any change of the 5 factors will cause the wheel size change, and optimal wheel size will be a much more dynamic...

I'm posting it everywhere later to prove you're not reasonable.

That's your serious pedelec, not other's. The definition of pedelecing won't change according to your understanding.

People arguing here only strength this truth. Great point.

This is a disaster of truth, Honda motor is a combustion-powered scooter. When a certain amount of gas burns, the engine push the wheel a certain distance no matter the wheel is big or small. While the electricity-powered motor is in a different theory. Big wheel causes the motor hot and shortcut.

Honestly, DYU lose battling this very big scooter..

Why should DYU compete with the other big e bikes when the small shape is its advantage? Being like Lego is also not bad thing when enough people love and buy it. It's family friendly after all both for parents & kids. When DYU has a low manufacturing cost by improving its tech in production...

There is something to cushion the roads. The inflatable tires and seat with proper springs are definitely enough for that.

It is folding in its design. Over folding design makes the bike broken easily when overloading.

This is the most objective, realistic and sensible word here. Thanks for telling the truth. Brompton is alike DYU and will do a job like them.

They are the series feature not an afterthought: DYU 1, 2, 3 all have the distinctive streamline dolphin shape. Nowadays, people care a lot more about the product shape & look than before and that's also a reason why DYU is popular.

Riding safe with helmets, gloves and knee pads on will reduce the accidents significantly. But nothing is 100% safe including the cars that take away hundreds of lives everyday on earth. The weight makes it durable and able to load taller & heavier Europeans. By the way, the gross weight of DYU...

It has 2 obvious differences: 1. DYU is rounder and streamlines design 2. Swizzbee have a higher frame and straight line design. Rounder shape might be more lovely in the eyes of most people. It's proved with above pictures that it's suitable for most European riders. What's more DYU is a...

Pedelecs could be much more attractive than me in this forum

I prefer DYU in London streets.:D

Mini cars have a giant market anyway without much marketing.

When this bike doesn't worth a word or hating, why people here seem to care it so much? I like your honesty but it's not true to those people I mentioned above: doesn't wish to get sweaty, having constant short trips but doesn't want to pedal or take a taxi, someone hurt his knees, some girls in...