Saturday, July 27, 2013

Why have ebikes, electric mopeds and electric scooters largely disappeared from North American cities?

best selling electric bikes on Best Buy to Start Selling Electric Bikes Next Month : TreeHugger
best selling electric bikes image



sally


Who is "killing" the Electric Bike (aka Electric Scooter) in US and Canada? Many retail shops have closed, from Boston to Vancouver. North American manufacturers (Nova Cruz, Wavecrest, Bionx, Egovehicles) have gone under or are selling much less than they did before.

In comparison, in most of Asia, sales of ebikes are surging? Is it the economy collapse? Is it government? Is it the big auto companies? Is it battery companies? Is it some other factor?



Answer
All these smaller vehicles are disappearing mainly because of our affluence. As all the household get affluent they do not want smaller bikes and cars and go for bigger ones. Also it creates a fashion and so the not so affluent also aim to buy it. In due course there is no takers and they die a natural death.
Take the case of China where a decade ago there were thousands of cycles in the main cities and now they are all replaced with bikes and cars. So is the case of India. Once it was having a lot of 100 cc bikes but now it is n the decline. So it is the life style and not the government or oil companies who are responsible for it.

is it poss to run a bicycle or small motorcycle on 12 volts dc?




oldfarrrrt


i am trying to make an electric bike for my granddaughter. can anyone give me some suggestions on how to accomplish this? what size motor would i use? can the battery be recharged while in use? any info would be appreciated.


Answer
To answer your question, 24 to 36V would be more realistic. 12V will be a very slow e-bike (maybe that's what you want?)

That said, this is a classic make-vs-buy proposition. Let me hazard a guess that you want this by Christmas, and it needs to work, right?

I suggest buy.

The reason is, motors for e-bikes are much more robust than those you might find in a hand tool, kid's ride-on toy or a starter. A typical e-bike motor will be 500W or more sustained duty, and so will have the extra mass and cooling to handle it. A tool or starter motor just isn't built for that kind of duty and will fail in short order.

Plus, the kit will come with a speed control - and if done right the controller will do regenerative charging too.

Lucky for you, there's lots of e-bike kits, both the in-hub style and chain drive. Looks like they run about $400, with the bulk of the cost being the motor and battery.

First link below is to a site that sells both parts and complete kits. (Lots more if you google "electric bike kit" - second link is just an example).

BONUS: sub-8 second electric drag bike (last link.) Just because.




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Title Post: Why have ebikes, electric mopeds and electric scooters largely disappeared from North American cities?
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