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nedfunnell replied to the thread Hi, considering a Gas Gas Trials bike conversion with Hub Motor.
"
Quote Originally Posted by bigpie View Post
I'm not sure what motors to start looking at if not going for a hub, most that people use in road going bikes seem overkill, I don't need big sustainable power but large peaks will be good. ME1003 I've read a little about might be overkill?
The ME1003 would probably work well. You might also consider the ME0709- I have heard it is the same motor windings with half the commutation area. Lighter and powerful enough for my road motorcycle that goes 70MPH. "

1 Day Ago

bigpie replied to the thread Hi, considering a Gas Gas Trials bike conversion with Hub Motor.
" I'm not sure what motors to start looking at if not going for a hub, most that people use in road going bikes seem overkill, I don't need big sustainable power but large peaks will be good. ME1003 I've read a little about might be overkill? "

2 Days Ago

Hugues replied to the thread Hi, considering a Gas Gas Trials bike conversion with Hub Motor.
" Hi,

i see from the specs of the first one 180 N-m torque, which is not bad for a motor, but for a hub you don't have any demultiplication of that torque. YOu can find electric motors in the 100 N-m range , coupled to a nice belt drive with easily a 4:1 ratio and there you go, you've got 400 N-m on the rear wheel. Or just a chain drive if you don't care about the noise. "

2 Days Ago

bigpie replied to the thread QS Hub Motors.
" I'm tempted to try the QS205 50H V3 for a gas gas trials bike conversion, it looks like it might be good for my uneducated guess, it looks like you can specify a high torque winding which I'd have thought would be good for a trails bike, along with 48v for the top speed I'd be after. Any thoughts on how suitable this would be? 3kw with a 6kw peak? "

2 Days Ago

bigpie created the thread Hi, considering a Gas Gas Trials bike conversion with Hub Motor.
" Hi from the UK,

I've recently got a Gas Gas TXT 250, it's a noisy 2 stroke, I'm considering converting to electric. My son has an Oset at its great. I think a trials bike might be great for converting, no need to worry about long range, insurance and road legal stuff, DC-DC converters etc and is a fairly light weight machine.

Now the top speed should be fairly modest, but it needs to have quite punchy acceleration. Although I'm not that good at trials riding so it doesn't need to be that competitive.

I'm thinking hub motor for easy of converting.

I'm wondering if something like https://www.aliexpress.com/item/Free...6-72a0984efc58 would be any good for the motor? I was thinking maybe 10-15ah at 48v nominal Hobby LIPO

Or maybe a hobby motor https://hobbyking.com/en_us/turnigy-...___store=en_us

Thoughts/recommendations? My only experience is building a 250W ebike with a brushed motor and my welding was rubbish "

2 Days Ago

ElMotoMike clicked Likes for this post: Kawasaki ER5 Electric on Ebay by genawin

4 Days Ago

flo created the thread Hi from Munich Germany.
" Hi there,
i`m Flo from a small village called Aying, just south east of munich.
Working self employed, my hobbies being rock climbing, riding motorbikes since i can`t remember when and flying electric planes...
Having my own cnc for my hobbies helps a lot to do my DIY stuff.
Here is where my two hobbies merge.
A couple of weeks ago i made up my mind to build my own e-motorbike.
At the moment i am near the end of the planing-phase.
Already sourced a donor bike, a sachs xtc 125 which will be strippe this summer and plan is to turn it into a street legal motorbike till next year.

Lets see how this turns out.

Flo "

6 Days Ago

udaykishanr replied to the thread eAssist AC Induction Motor.
" Hello Everyone,

I need your help in using Curtis AC Motor Controller 1236E series. Basic support is appreciated, like how to connect Curtis device and talk to the Induction Motor.

To start with, I am using BAS+ eAssist for one of the applications. I am interested to build a starter/generator for a Vehicle, now then, I am intended to control torque of this motor and have to make it operate at its peak value(Pullout Torque). I found Curtis AC Motor controllers interesting for this job. But I am totally unaware of how to use these controllers. I need help in using these Curtis Controllers to establish a communication between Inverter and Motor. At this point, I don't require any communication with CAN bus. Like I said, my interest is to maintain maximum torque value for some time period. Any input is appreciated.

Thanks in advance,
Uday "

6 Days Ago

flo replied to the thread Elmoto v2.0 Data sheet.
" Hi everyone,
im Flo from Munich Germany. The new guy around here.
A Spreadsheet like this is just what i need at the bgeinning of my conversion of a xtc 125.
Still some values and graphs do not make too much sense for me but its better than an educated guess.
So if using either the me0913 or the me1115 what torque figure should one enter? at 25 lifepo. Any pointers?
aditonally i do not get the accell and 1/mile numbers. why should i enter these? should not that be generated by the sheet? what am i missing.
Thanks in advance for your help - and forgive any misunderstandings- i am not a native english speaker so it is sometimes a bit harder/arquard with and for me -LOL.
Once i start i will of course post an conversion thread.

greets

flo "

1 Week Ago

Stevo replied to the thread Hello from Belgium.
"
Quote Originally Posted by stark View Post
Hello people,

I won't disclose my real name, but people usually call me Stark or Doc, i do R&D in 3D printing for a living, i work on some interesting and challenging problems with businesses and institutes here in brussel, some people say that they have a hard time working with me, some others love working with me, but they share on though, i get the job done.

So it's been a while since i started thinking about converting a motorcycle, i am so eager to face the so many challenges that each of you have probably met during your conversion, yet my biggest challenge will be a unique one, convince belgian authorities to accept my bike on the road, as most of you know europe isn't so keen on letting people convert and ride their vehicules, well belgium is a very special case of "Just Don't".

I am looking to convert an old trail bike, my top 3 for the moment are kawa Kle 500, Honda Africa Twin and honda Transalp.

Something inside me is burning telling me to build my own hub motor, there is so much to learn going the DIY way, it will be challenging to get on running, but what is life if one doesn't get pushed out of his confort zone, so i will probably got down that road and build a hub motor for the rear wheel, i will probably just buy a kelly controller, and go lithium ion for batteries, Tesla's new batteries seem really really really interesting.

Given i work on 3d printing i will be able to reprint some of the fairings and visual features of the bike, i will even 3d print some parts of the motor and cast them Aluminium.

So yeah, i am happy i found this forum, i read some of the threads on conversions, i love the path you walked guys, looking forward to share with you guys my experiences.

PS: Anyone in belgium that have done a conversion and managed to get it on the road?
Welcommen and good luck with your project



Sent from my SM-G920V using Tapatalk "

1 Week Ago

Bethom89 created the thread Newby after advice.
" Hi, I'm looking to build an electric motorcycle soon, as a complete novice I'm after some advice. I'm looking at a Lynch motor lem 48v nominal dc motor, lem 200. Is this a good choice? What sort of power and speeds could I expect to get from it? And what lithium ion battery set up would be best. I am willing to spend a few on this project as I want good range and speed. In terms of
Any advice is much appreciated. "

1 Week Ago

robo created the thread My DR350 needs to go.
" Howdy folks. I want my garage space back and I'm selling my titled DR350 elmoto for basically the cost of parts (or perhaps even less).

It is a great bike. Any early bugs were worked out long ago. It has been solid- I have just over 3100 commuting miles on it now (~5000km). The pack has been babied with only 148 cycles (says the cycle analyst).

You can ride it away or use all the parts for your next big idea. My detailed elmoto build thread is around here somewhere, or you can just see it here:

http://www.perceptive-research.com/emoto/

Cheap! $1750. Most folks on elmoto are cheap bastards like me, so here's your chance! Even the charger is included (that's a couple hundred alone).

It's a package deal. No parting out.

Cheers,
Rob

p.s. I did upgrade the throttle to a Domino. The PB-6 should be banished from the earth for what it costs. "

1 Week Ago

Stevo replied to the thread Mean well question.
" Thanks Ned... I thought I probably should add another one "

1 Week Ago

nedfunnell replied to the thread Mean well question.
" I forgot to mention that I do have a diode on the output of each MW. This was recommended in case one of them fails while connected to the pack. I'm not sure what failure mode exactly (short circuit?) but apparently without the diodes, one MW failing could kill the other by putting full pack voltage across it. "

1 Week Ago

stark created the thread Hello from Belgium.
" Hello people,

I won't disclose my real name, but people usually call me Stark or Doc, i do R&D in 3D printing for a living, i work on some interesting and challenging problems with businesses and institutes here in brussel, some people say that they have a hard time working with me, some others love working with me, but they share on though, i get the job done.

So it's been a while since i started thinking about converting a motorcycle, i am so eager to face the so many challenges that each of you have probably met during your conversion, yet my biggest challenge will be a unique one, convince belgian authorities to accept my bike on the road, as most of you know europe isn't so keen on letting people convert and ride their vehicules, well belgium is a very special case of "Just Don't".

I am looking to convert an old trail bike, my top 3 for the moment are kawa Kle 500, Honda Africa Twin and honda Transalp.

Something inside me is burning telling me to build my own hub motor, there is so much to learn going the DIY way, it will be challenging to get on running, but what is life if one doesn't get pushed out of his confort zone, so i will probably got down that road and build a hub motor for the rear wheel, i will probably just buy a kelly controller, and go lithium ion for batteries, Tesla's new batteries seem really really really interesting.

Given i work on 3d printing i will be able to reprint some of the fairings and visual features of the bike, i will even 3d print some parts of the motor and cast them Aluminium.

So yeah, i am happy i found this forum, i read some of the threads on conversions, i love the path you walked guys, looking forward to share with you guys my experiences.

PS: Anyone in belgium that have done a conversion and managed to get it on the road? "

1 Week Ago

frodus replied to the thread Motor selection advise wanted.
" Looking at $1500 USD for the motor/controller kit with harness and display. Not including shipping. Consider this is motor and controller, and that you're looking at 500-1000 for a motor and another 500-1000 for a controller if you decide to go brushed.

I reached out to my buddy to see if we can take it out of his scooter, and get it prepped to ship/test it again. "

1 Week Ago

Stevo replied to the thread Mean well question.
" Thanks guys. I decided to put a diode in between the two in series outputs also. I put a manual power switch on the input side of one of them just because Meanwell suggested it, so I power them up individually just to be on the safe side. They work perfect and charge the pack up to 90 volts very quickly. "

2 Weeks Ago

cmcnall replied to the thread Mean well question.
" I power mine up at the same time.
I do have a diode in between the two in series on the output.
I also then have a relay to enable the output to then charge the battery and disconnect after a certain voltage is reached. "

2 Weeks Ago

Stevo replied to the thread CRF Supermoto Conversion.
" I did one and am currently on my 2nd generation version. I'm in the early stages of planning my 3rd gen version.
This is the motor I am leaning towards: http://www.thunderstruck-ev.com/mote...brushless.html

Attachment 7365

Alltrax is in the early stages of building a controller for this type of motor and I am probably going to wait for them to accomplish this. Hopefully the next generation of batteries will be available at the same time. This motor will get up to 5000 rpms, so with the right gearing, that translates to 90-100 mph... competitive enough!

My current build is nowhere near competitive, but my chassis and suspension are top notch!. "

2 Weeks Ago