About the A-Bike Where to Buy Reviews Forum A-BIKE CENTRAL
Home Page
Gallery & Videos Sinclair Bikes History Other Folding Bikes A-Bike News (Blog)

DIY Electric A-bike upgrade kit!

Chat about your A-Bike, post details of your exploits, ask advice from other owners, etc.

Moderators: Binch Shin, newcross, Amuro Lee

DIY Electric A-bike upgrade kit!

Postby Amuro Lee on Thu Sep 20, 2007 7:53 am

Image

Video
http://www.youtube.com/watch?v=gvk1oEW-4lI

Online Auction (not including the bike, battery and charger)
http://auction1.taobao.com/auction/0/it ... 528f.jhtml
http://en.wikipedia.org/wiki/Amuro_Ray

Folding Forum - The Community Site for all Folding and Micro Bicycles
http://www.foldingforum.com/forum
User avatar
Amuro Lee
 
Posts: 617
Joined: Sun Dec 24, 2006 7:24 pm
Location: Hong Kong

Postby kenwshmt2 on Thu Sep 20, 2007 2:55 pm

Clever
any specs?
User avatar
kenwshmt2
 
Posts: 120
Joined: Wed Apr 25, 2007 1:37 pm
Location: Dallas, Texas, USA

Postby Amuro Lee on Thu Sep 20, 2007 7:45 pm

kenwshmt2 wrote:Clever
any specs?

Okay, I try to translate the specs for you. :)

Power: 200W
Maximum speed: 20Km/h
Motor weight: 1.75kg
Travel Distance: 12-20Km
Transmission Mode: Electronic Nonstage Transmission
Control Mode: Hall device Handle Bar Accelerator
Battery Type: Lithium iron phosphate battery, 4Ah/25.6V
http://en.wikipedia.org/wiki/Amuro_Ray

Folding Forum - The Community Site for all Folding and Micro Bicycles
http://www.foldingforum.com/forum
User avatar
Amuro Lee
 
Posts: 617
Joined: Sun Dec 24, 2006 7:24 pm
Location: Hong Kong

Postby newcross on Fri Sep 21, 2007 5:12 pm

This is great!! This could be err... Sinclair ZETA IV (A) or something like that. :lol:
User avatar
newcross
 
Posts: 342
Joined: Tue Mar 06, 2007 7:35 pm
Location: London, U.K.

Postby ksd on Mon Oct 01, 2007 3:09 pm

Is it as noisy as those little mopeds?
An appeaser is one who feeds a crocodile, hoping it will eat him last.

Sir Winston Churchill

http://ipodnanogiveaway.co.uk/index.php?referral=173070
User avatar
ksd
 
Posts: 28
Joined: Fri Jul 13, 2007 11:50 am
Location: Derby, England.

Postby Amuro Lee on Mon Oct 01, 2007 4:17 pm

I think you can find the answer from the video after the background music has ended.
http://en.wikipedia.org/wiki/Amuro_Ray

Folding Forum - The Community Site for all Folding and Micro Bicycles
http://www.foldingforum.com/forum
User avatar
Amuro Lee
 
Posts: 617
Joined: Sun Dec 24, 2006 7:24 pm
Location: Hong Kong

Postby ksd on Tue Oct 02, 2007 10:46 am

That's great. But.....some queries.

Is the art of predalling now made defunct?

Can the speed be changed?

Does this affect the brakes?

Great idea.
An appeaser is one who feeds a crocodile, hoping it will eat him last.

Sir Winston Churchill

http://ipodnanogiveaway.co.uk/index.php?referral=173070
User avatar
ksd
 
Posts: 28
Joined: Fri Jul 13, 2007 11:50 am
Location: Derby, England.

Postby Amuro Lee on Tue Oct 02, 2007 2:52 pm

ksd wrote:That's great. But.....some queries.
Is the art of predalling now made defunct?

I think you can still enjoy the art of pedalling after installing the kit. However, when you feel tired, you can turn the motor on and enjoy "the art of motoring". :P

ksd wrote:Can the speed be changed?

Yes, there's a handle bar Accelerator included.

ksd wrote:Does this affect the brakes?

I think the brakes still work after installing the kit.

I just found it on the Internet and post the related information, pictures, links and video here for sharing purpose. I don't know too much about it actually.
Last edited by Amuro Lee on Wed Oct 03, 2007 3:46 am, edited 2 times in total.
http://en.wikipedia.org/wiki/Amuro_Ray

Folding Forum - The Community Site for all Folding and Micro Bicycles
http://www.foldingforum.com/forum
User avatar
Amuro Lee
 
Posts: 617
Joined: Sun Dec 24, 2006 7:24 pm
Location: Hong Kong

Postby Binch Shin on Tue Oct 02, 2007 4:12 pm

Yeh!!... Great!! :shock:

Oneday I imagined a similar 'electric power supporter unit' for A-bike.
There were two problems.
1. Avoiding the interference between pedals and the unit.
2. An 'additional freewheel mechanism' on the unit.

He seems to solve the first problem clearly !!
Good technician, he is.. :D
Bicycles are Human Amplifiers - Mark Sanders -
Bintz's google profile(Buzz)
User avatar
Binch Shin
 
Posts: 233
Joined: Fri Sep 15, 2006 9:50 am
Location: Seoul, Korea

Postby Gyrobot on Tue Feb 19, 2008 1:12 pm

Hi all,
I have also electrified my A-Bike (yes I know it's a fake one). Power leads connect from the seat to a 24V battery carried in a rucksack.
Possibly the first electric A-Bike in the UK??

Image

Image

Image

Image

Image

Image

More pictures can be found here :-
http://homepage.ntlworld.com/steve-wood/A-Bike/

Everything works well, much less stress on the frame through lack of pedalling, speed is about 15+mph due to gearing but I havent tested battery life yet, I guess it's as long as how large a battery you fancy carrying in your back pack.
User avatar
Gyrobot
 
Posts: 4
Joined: Mon Feb 11, 2008 12:51 pm
Location: Swindon, UK

Postby Weakling on Tue Feb 19, 2008 1:37 pm

I guess all the RC hobby folks could give you advice on batteries
and how to get the most out of them.

Are you able to pedal it together with the motor when you go uphill?

If you switch off the motor and pedal does the motor turn and
make it more heavy to turn the cranks ?

what effect on the motor and what was it used for, intended for?

The little black box is that a motor relay? I have "built" radios but not
motors so I know nothing about such.

The good thing with such an arrangement you have is that the battery
is so flexible. You could change it very easy between litium to metal hybrid
or lead depending of what is sold locally at bargain price.
User avatar
Weakling
 
Posts: 200
Joined: Mon Dec 03, 2007 7:01 pm
Location: Sweden

Postby ctlai on Wed Feb 20, 2008 4:59 am

cool can you give out the spec of the motor and controller that you use to the mod, please
ctlai
 

Postby Gyrobot on Wed Feb 20, 2008 8:52 am

The little black box is indeed a 24V 80A relay which is the "controller". I decided to go for a simple on/off switch for the motor rather than a scooter style throttle grip and speed controller combination (although I do have these in my spares box). 80A is probably overkill because the whole circuit is protected by a 35A fuse inside the seat but it was what I had lying around and it fitted fine. You could fit a 40A version from here : http://www.technobots.co.uk/acatalog/Online_Catalogue_Relays_360.html

I can pedel (or freewheel) whether the motor is engaged or not but there is a little extra friction of the motor and drive chain to overcome. It is benefitial for battery life to start cycling as normal and then once started, switch on the motor (push button switch) for an easy ride. Release the push button to switch the motor off and brake as normal.

The batterys I use are 2x12V 7.5Ah SLA wired in series to give 24V carried in a backpack. These are a cheaper at £12 each but a heavier solution than a Lithium Ion alternative which comes in at £200 from here : http://www.poweredbicycles.co.uk/MOTOPB7/513.htm

The motor is a general purpose scooter motor 24V - 250W - 13.5A - 2750RPM which I bought from ebay although they are available elsewhere.

Hope this helps,
Steve.
User avatar
Gyrobot
 
Posts: 4
Joined: Mon Feb 11, 2008 12:51 pm
Location: Swindon, UK

Postby newcross on Wed Feb 20, 2008 9:09 pm

Gyrobot, I Salute you. 8)
User avatar
newcross
 
Posts: 342
Joined: Tue Mar 06, 2007 7:35 pm
Location: London, U.K.

Postby Weakling on Thu Feb 21, 2008 9:28 am

Gyrobot I love your description
User avatar
Weakling
 
Posts: 200
Joined: Mon Dec 03, 2007 7:01 pm
Location: Sweden

Next

Return to General Discussion

Who is online

Users browsing this forum: Majestic-12 [Bot] and 17 guests

cron