Electric Bikes Conversion Kits EMTBS eRoad/Commuting What's New?

Dahon Jetstream conversion

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cwah

Esteemed Pedelecer
Jun 3, 2011
3,048
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www.whatonlondon.co.uk
Hello there,

I just received BMSbattery parcel and now I'm ready to convert my Dahon jetstream with a BPM:


I'd like to reuse the rear wheel freewheel from my Dahon:


But for some reason the freewheel removal tool doesn't go inside????

Any idea how to remove it and fit it to the bpm?


Thanks I hope to be able to have a ride on a bike ASAP :)
 
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patpatbut

Esteemed Pedelecer
Apr 25, 2012
860
79
It looks like a CST to me not freewheel...the tool is different

You can get dnp 8 speeds freewheel from john

Pat
 
D

Deleted member 4366

Guest
It is a cassette (free-hub), so you can't use it with that motor.
 
C

cwah

Esteemed Pedelecer
Jun 3, 2011
3,048
179
www.whatonlondon.co.uk
what about this freewheel, is it cassette too?


So I need a new freewheel?
 
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patpatbut

Esteemed Pedelecer
Apr 25, 2012
860
79
Yes it is also

You need a new freewheel

If you want 11t one I think only dnp is doing it

Pat
 
C

cwah

Esteemed Pedelecer
Jun 3, 2011
3,048
179
www.whatonlondon.co.uk
by the way, I also have sensorless controller, can the BPM work sensorless?
 
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patpatbut

Esteemed Pedelecer
Apr 25, 2012
860
79
Yes but it depends how many speed of you jetstream has

Dnp has 7,8 or 9 speeds available

Also if you are from UK you can get it from john ezee (save the postage and time)

http://www.cyclezee.com/ezee-parts-and-kits.html

Of course if you want to get something from Paul you can get the freewheel from him

Pat
 
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Cyclezee

Guest
Hi cwah,
We have some DNP 8 speed 'screw on' freewheels with 11 to 32t for £28 plus postage.
 
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patpatbut

Esteemed Pedelecer
Apr 25, 2012
860
79
Yes BPM works either sensorless or hall

What speed do you want to run? For high speed I still prefer running sensor

Pat
 
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cwah

Esteemed Pedelecer
Jun 3, 2011
3,048
179
www.whatonlondon.co.uk
Hey John,

I'm happy to buy from you but you are 50% more expensive than paul even with shipping cost included.

I'm also looking for several items:
- Empty battery box with mounting plate. As big box as possible I have a massive amount of battery to put inside:


- Ebike counter and display:
2013 New Display,FDM Ebike Kit,electric bike kit, K LCD3 Display -in Other Sports & Entertainment Products from Sports & Entertainment on Aliexpress.com

- Complete disc brake adaptor for dahon jetstream.

If you have these, I'd be glad to hear from you :)

Cheers
 
C

cwah

Esteemed Pedelecer
Jun 3, 2011
3,048
179
www.whatonlondon.co.uk
I'm planning to run it at 74V... but i just didn't want to mess around with hall sensors...

But ok I'm going to plug the hall sensor.
 
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patpatbut

Esteemed Pedelecer
Apr 25, 2012
860
79
cwah said:
I'm planning to run it at 74V... but i just didn't want to mess around with hall sensors...

But ok I'm going to plug the hall sensor.
Click to expand...
Good. Hope everything goes well :)

Btw, that controller display is very nice, I wish it has watt display as well.

Pat
 
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cwah

Esteemed Pedelecer
Jun 3, 2011
3,048
179
www.whatonlondon.co.uk
If you check on the right of the screen, there is a writing "motor - W", so maybe there is a watt display.

CA is nice, but I really hate the design, it's so big and bulky. Even though it's a good tool.
 
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patpatbut

Esteemed Pedelecer
Apr 25, 2012
860
79
Yea how can I miss that. It should be the watt monitor.

Do you know what controller does it compatible with?

Pat
 
C

cwah

Esteemed Pedelecer
Jun 3, 2011
3,048
179
www.whatonlondon.co.uk
What I'm looking for is a controller independent display, similar to the CA. I'm trying to get in touch with the seller but he is not answering...
 
C

Cyclezee

Guest
cwah said:
Hey John,

I'm happy to buy from you but you are 50% more expensive than paul even with shipping cost included.
Click to expand...
Hi cwah,

Have you factored in the cost including import duty and VAT?

I can't quote for postage without a location.
 
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Deleted member 4366

Guest
A 7 speed free-wheel will be better if you can get one. The Dahon frame is very stiff, and takes a bit of levering to get the 7 speed in. An 8 speed might be too wide.

Those LCD displays have various functions in them,but they only work if the controller supports them. The one you showed will only show watts if the controller gives it that information.

Did you read this thread?
http://endless-sphere.com/forums/viewtopic.php?f=2&t=52619#p781258
 
Last edited by a moderator:
C

cwah

Esteemed Pedelecer
Jun 3, 2011
3,048
179
www.whatonlondon.co.uk
C

cwah

Esteemed Pedelecer
Jun 3, 2011
3,048
179
www.whatonlondon.co.uk
Cyclezee said:
Hi cwah,

Have you factored in the cost including import duty and VAT?

I can't quote for postage without a location.
Click to expand...
It would be to ship to london. Postcode SE15 4LN.

Do you have any empty battery box with mounting plate?:


Thanks for all
 
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