New to e-bikes, considering Brompton conversion.

[Woosh]

But untested and very expensive. And only works with 2 speed derailleur verison of a brommie. Not a IGH version like my m3l

The DWG2NC kit uses regular cassettes, the smallest cog is 11T. On standard 3-speed Brompton, 50T chainring gives 1.32m * 50T/ 11T * 80RPM * 60 seconds in a minute = 28.8km/h
If you could fit a derailleur then it's possible.
A kit with DWG2NC with 36V 15AH bag battery about £500.

 

[jamesporritt]

The DWG2NC kit uses regular cassettes, the smallest cog is 11T. On standard 3-speed Brompton, 50T chainring gives 1.32m * 50T/ 11T * 80RPM * 60 seconds in a minute = 28.8km/h
If you could fit a derailleur then it's possible.
A kit with DWG2NC with 36V 15AH bag battery about £500.

Please could you tell me which controller you supply with your kit? Is it a KT?

How far do the dropouts need to be spread?

Do you supply the rear wheel with the motor fitted?

 

[Woosh]

I have not thought of making a rear hub kit for the Brompton until now. It's your thread that made me think about doing this. I will convert my Brompton with the DWG2NC rear hub in the next week before getting back to you with proper answers.

 

[jamesporritt]

I'm aware of this one coming

Boost your Brompton with the lightest e-motor upgrade system

Boost is the lightest, most discrete way to make your Brompton electric

boostbike.uk

But untested and very expensive. And only works with 2 speed derailleur verison of a brommie. Not a IGH version like my m3l

126Wh? £799? Ludicrous!

 

[jamesporritt]

I have not thought of making a rear hub kit for the Brompton until now. It's your thread that made me think about doing this. I will convert my Brompton with the DWG2NC rear hub in the next week before getting back to you with proper answers.

It's a KT rear hub conversion or nothing. I don't mind replacing the controller in your kit with a KT.

 

[Nealh]

It's a KT rear hub conversion or nothing. I don't mind replacing the controller in your kit with a KT.

One would also have to replace the dispaly as well.

 

[jamesporritt]

One would also have to replace the dispaly as well.

That's ok. Which display do you use and why?

 

[StuartsProjects]

For a Brompton an LCD4 fits nicely on the handlebars.

Be careful with bigger displays, remember the Brompton is a folder and you dont want a large display poking out when you wheeling it folded around a shop or carrying it up the stairs.

 

[AndyBike]

126Wh? £799? Ludicrous!

Price might reflect the quality of the product.

 

[Deleted member 16246]

Great thread this. I am looking at my Brompton with new eyes. It's been folded up in a corner for about two years.

 

[jamesporritt]

Great thread this. I am looking at my Brompton with new eyes. It's been folded up in a corner for about two years.

Front or rear motor conversion? KT or not KT?

 

[jamesporritt]

Price might reflect the quality of the product.

Which part? It's a normal looking hub motor. How high quality could a weeny 126Wh battery possibly be?

 

[Deleted member 16246]

Front or rear motor conversion? KT or not KT?

I am just thinking about it. I looked at this a few years ago when there were fewer possibilities than now and more brutal intervention needed vis a vis fork spreading and filing drop outs. Now none of this is necessary. I don't know is the real answer James, I am just waiting for 'enlightenment' from the folks here.

 

[Woosh]

Front or rear motor conversion? KT or not KT?

Why have you excluded other controllers? I intend to use a tongsheng controller if my rear hub conversion is good and easy to install.

 

[jamesporritt]

Why have you excluded other controllers?

Doesn't everyone prefer KT?

I intend to use a tongsheng controller if my rear hub conversion is good and easy to install.

Why overcomplicate? Why not KT?

 

[Woosh]

You read the threads on here, members regularly ask questions about how to set up their KT controllers, no other brand creates as much support questions. My job is to return an operating profit for Woosh, I can't do that if I have to pay extra to use KT controllers. I know some members love KT's flexibility but simplicity and reliability are more important in the long term.

 

[jamesporritt]

You read the threads on here, members regularly ask questions about how to set up their KT controllers, no other brand creates as much support questions. My job is to return an operating profit for Woosh, I can't do that if I have to pay extra to use KT controllers. I know some members love KT's flexibility but simplicity and reliability are more important in the long term.

I'd pay more for a KT option.

 

[Woosh]

I'd pay more for a KT option.

We don't sell them but you can buy them on aliexpress or amazon. You can also fit your old KT controllers and lcd to most hub kits, including those sold by woosh at the moment.

 

[Nealh]

There is no long term issue with KT stuff , it is OEM vs after market self build components . Imv KT give a much better ride and user option then Lishui.
KT is highly usable and compatible.
Try buying Lishui spares on the open market for self build or spares and it is nigh on impossible , plus with KT one doesn't need to programme software.
It boils down to wether one wants KT current control or Lishui speed control.

 

[Woosh]

You can set the number of assist level and percentage of power for each assist level in my Brompton kit (lishui +kd58c lcd). So it is pretty flexible. I switched to current control on the bikes last year. The Tongsheng controller that I intend to use on the rear hub Brompton kit is a TS model, it may be ok to use with osf. It is still in the pipeline, I haven't got it yet though. It's something member Mechaniker invented a little while ago.