Hi thatsme
I live in Korea.
You can refer to this advices first. :: AbikeCentral advice before buying
And this is my opinion about your question.
is it much cheaper?
I'm contacting with DAKA to find a mail address through that Japanese can keep in tough with the A-bike service team(purchase or A/S). Please wait and ascertain later.
also the imitations, still it is something to be worried, are those imitations as good are the real mckoy?
Here is an opinion of the inventor, Alexander Kalogroulis ---
I was horrified when I saw the photos of the imitation bike, it looks like a very poor quality copy. I fear that the quality of materials will also be inferior and people buying it could be hurt if it fails whilst in use. I would be very surprised if the copy had ever under gone any of the international bicycle standards tests. I have passed on the details to the UK and European distributor as the copy clearly infringes our intellectual property rights (patents and design registrations). 3rd December ---
riding it on weekends when i go out shopping.
Not suitable for the shopping.
It is certain that if you buy and ride A-bike then you would be more and more happy as time goes on.
Good Cycling