GoPed Sport Electric Conversion

Lightweight / Folding / Portable EVs - seats optional

GoPed Sport Electric Conversion

Postby Guy H » Thu Apr 12, 2012 6:02 pm

Hi

I wanted to share with you my scooter conversion process for electric power.
This is an old chassis of GOPED SPORT and RC electrical equipment

Installed components are:
*Motor : Chinese 6364 230KV from Hobbyking
*Controller : Hobbyking 190-200A
*Servo tester
*BEC
*Batteries : nano -tech 45C 5S 5A X2

Most parts were constructed of composite materials, the final weight is 8 KG.
The motor take me (80KG) easily and never warms up even on long rides.
Speed ​​is 25 KPH with a 1:5 gear and range is about 10-12 KM per charge.

I got it like this:
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working :
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after paint:
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Electronics box:
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look bad .. so:
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Re: GoPed Sport Electric Conversion

Postby Guy H » Thu Apr 12, 2012 6:21 pm

just little things:
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now the best part of this work :D Carbon! :
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Just a little left , but only next week ..
Enjoy!
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Re: GoPed Sport Electric Conversion

Postby Green Machine » Thu Apr 12, 2012 6:42 pm

Really sweet work. Not enough good electric scooter conversions anymore.

I am suprised you dont get faster than 25kph per hour.
http://www.electricbike.com Between the wish and the thing the world lies waiting.
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Re: GoPed Sport Electric Conversion

Postby milesinfront » Fri Apr 13, 2012 4:07 pm

Awesome job! Is the carbon cut from hard sheet, or did you 'brew' it yourself? Wish my scooter was 8kgs, but then again I'm aiming for 50km/h+.... :)
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Re: GoPed Sport Electric Conversion

Postby Guy H » Fri Apr 13, 2012 6:07 pm

Green Machine wrote:Really sweet work. Not enough good electric scooter conversions anymore.

I am suprised you dont get faster than 25kph per hour.


Thanks for the compliments
Don't be surprised.. now I'm working on 5 cells instead of 6 , as soon as I change my battery I will get to 30.
I have transmission for power insted speed because I live in a mountainous area..

milesinfront wrote:Awesome job! Is the carbon cut from hard sheet, or did you 'brew' it yourself? Wish my scooter was 8kgs, but then again I'm aiming for 50km/h+.... :)


Thanks to you too
I cut the motor and rear wheel parts made from purchased plate (thickness is 2.5 mm)
Plate and the part for carrying made by me with 180 g/m carbon fabric

Consideration in selecting the components were made only by weight since I'm a student and need to take it with me between classes...
I have a few more projects which go much faster, hoping that soon I will have the time to upload them
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Re: GoPed Sport Electric Conversion

Postby def215 » Sat Apr 14, 2012 3:32 pm

nice! that is awesome!

i guess im not the only one that has converted a goped sport from gas to electric. :mrgreen: heres mine that ive converted:
Image
the gasser one in the background has nothing on this one. :wink:

yours is way better than mines by a long shot. :lol:
Project: E-BMX - Completed, debugging.
Konion Powered!
viewtopic.php?t=14550

Project Min-E Ped:
viewtopic.php?f=35&t=25636
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Re: GoPed Sport Electric Conversion

Postby Guy H » Mon May 14, 2012 5:38 pm

tell you the truth?
I saw your scooter in google search and thats why I built mine :)

After two months with my scooter it's time to move on...
sold my goped and got myself GOPED GTR
I'll sell the engine because petrol driven scooters are Illegal in Israel and replace it with 80-100 brushless

this is my new toy :)
hope to open new thread soon ( I can't find motor like this in stock)
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Re: GoPed Sport Electric Conversion

Postby sk8norcal » Tue May 15, 2012 5:01 pm

nice!
I dislike those solid tire goped wheels, horrible ride.
pneumatic + suspension is way better...

do you see people using these small wheel e-scooters in israel ? popular?
I know kooper, moover, and trekker are from israel.
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Re: GoPed Sport Electric Conversion

Postby def215 » Tue May 15, 2012 9:58 pm

Guy H wrote:tell you the truth?
I saw your scooter in google search and thats why I built mine :)

my goped? :?:

a trail ripper platform should be pretty good. IMO i think thats probably one of the best gopeds to date.

that should be a great electric scooter when its done, especially with an 80-100. :twisted:

i remember running into this thread, not to scare you about having that scooter, but more of a caution. there have been stories of the front fork failing at the stem.
you can read about it here:
http://www.gopednation.com/forum/showth ... ail+ripper

im planning to trade up to an air-tire scooter soon so i might let go of mines soon too. :wink:
Project: E-BMX - Completed, debugging.
Konion Powered!
viewtopic.php?t=14550

Project Min-E Ped:
viewtopic.php?f=35&t=25636
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Re: GoPed Sport Electric Conversion

Postby Guy H » Wed May 16, 2012 3:33 am

Yes , your Goped..
This chassis lay in my house for a long time and when I saw what you did I started working on my.. :D

Like a car, motorcycle or any other vehicle you are riding it ,a person needs to check it from time to time and maintain it .. Cracks happened somtimes..
the chassis of GTR considered reliable because of suspension.

**Great news! i got myself 80-100 motor from leders hobby yesterday. it was in stock for a few hours.
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Re: GoPed Sport Electric Conversion

Postby Guy H » Thu May 17, 2012 3:23 pm

sk8norcal wrote:nice!
I dislike those solid tire goped wheels, horrible ride.
pneumatic + suspension is way better...

do you see people using these small wheel e-scooters in israel ? popular?
I know kooper, moover, and trekker are from israel.


These wheels are only good for driving on roads. on sidewalks it's a nightmare.
I agree that pneumatic tires and suspension are better..

The only scooter in Israel which use solid tires is Goped Iped..
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Re: GoPed Sport Electric Conversion

Postby sk8norcal » Thu May 17, 2012 4:14 pm

they have Iped2 with air tires 8", they discontinued Iped....
http://www.goped.com/Products/Iped-ii/default.asp
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Re: GoPed Sport Electric Conversion

Postby Guy H » Thu May 17, 2012 4:54 pm

This model had just arrived to Israel, looks good!
I personally like to build my scooters :)
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Re: GoPed Sport Electric Conversion

Postby Astropower » Wed May 23, 2012 7:52 am

Hello Guy.

Nice job you do here,
Tell me please, there is no heat problem with such a small motor with high output like this ?

by the way, I from Israel too, i like small compact E-scooters, maybe my next project.
you can see my project: viewtopic.php?f=35&t=38385
i didnt finish yet, soon i will.
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Re: GoPed Sport Electric Conversion

Postby Guy H » Thu May 24, 2012 7:11 am

Hi
I follow your project from the beginning, looks very good!

there was not a heating problem because the transmission was for slow speed (25-30 km/h)
The engine stays cold even after long climbs ( My weight is 80 kg)

Because the RC equipment light and have good performance, I recommend you consider using it in small scooter ..
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Re: GoPed Sport Electric Conversion

Postby Astropower » Fri May 25, 2012 1:56 am

The reason that i didnt using RC motor,
1. This kind of motor have low efficiency 40-50%
2. Generate lot of heat , that lead to short life time.
3. Low torqe, and high RPM, all this system generate lot of noise.

Generaly, this motor did not designed for heavy loads.

But i fan of small things.
Maybe in my next design i will try combin motor like you have, can you give me link for specification of your motor.
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Re: GoPed Sport Electric Conversion

Postby Kin » Fri May 25, 2012 7:16 pm

40-50% is not quite accurate... you may be running the motor in not the best conditions to be getting that bad efficiency. The 6054 should be powerful enough, but if you're running near 30mph you might want a more powerful motor. One option is to take a lower Kv 80100, rewire as wye/star, and it should still cope with the power demands of ~2kw. RC motors are just BLDC motors, so they might be inefficient in the sense they're not the highest quality if purchased from a cheaper place, but they can be decent in the right conditions.

Definitively requires a lot of reduction. I've been told you want to replace the ball-bearings on the hobbyking motors if you're running above 5k rpms, but at 5s I guess you're running at 4k and might be ok. The high heat might be a factor of the smaller motor being stressed throughout accelleration in these high demands.


I hear you have some of the coolest scooter designs in israel! At least all the cool ones sn0rkal posts, seem to be from Tel-Aviv.

I think Guy-h is running something like the http://www.hobbyking.com/hobbyking/stor ... duct=18180
New to endless-sphere? Notice a lot of signatures recommending Ebike.ca? That's because it's the best place for a quality and manageable, (but still 'real'), first build. Justin is a solid supporter of electric bike development, and a good source of equipment.

My hat off a thousand times to the green people that effectively run this forum. The ES Mods are superb.
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Re: GoPed Sport Electric Conversion

Postby Silenthunter » Wed Jul 31, 2013 10:35 am

Guys is this motor strong enough for goped big foot conversion Turnigy Aerodrive SK3 - 6374-192kv Brushless Outrunner Motor?
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Re: GoPed Sport Electric Conversion

Postby walls99 » Wed Jul 31, 2013 11:55 am

Silenthunter wrote:Guys is this motor strong enough for goped big foot conversion Turnigy Aerodrive SK3 - 6374-192kv Brushless Outrunner Motor?


I've used this motor on my goped conversion for the past 6 months and it seems to be holding ok, see here
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Re: GoPed Sport Electric Conversion

Postby Guy H » Thu Aug 01, 2013 10:57 am

Yes it will be great

This is Goped Bigfoot I built for a friend about six months ago and he use it almost every day

I used SK3 6374 192KV motor with 6 cells final speed set to 34 k/h
I personally prefer the C6374 of EMP, they start more easily and heat less (like the black motor in the goped sport)
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Re: GoPed Sport Electric Conversion

Postby Silenthunter » Thu Aug 01, 2013 8:53 pm

Guys,

I just bought two days ago the GoPed GSR 40 with the idea of making something similar that Guy H just posted. I was debating in my mind either to keep the fender and place the engine on the side or to place it in front of the wheel and remove the fender.

I so glad you posted these pictures....I like this clean mean look much more! The only problem that I have to figure out is that the GSR 40 comes with rear disk brake. I would like to keep the break so it will be less stress on the ESC and I will also save some energy. I guess I will have to remove the sprocket from the left side where the disk brake is and transfer it to the right side somehow. (plus to avoid all puddles on the street :).....

What is "the C6374 of EMP" also what speed controller are you using.....i don't see the ESC in these pictures?
What are the rest of the components you used in this scooter?
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Re: GoPed Sport Electric Conversion

Postby Guy H » Fri Aug 02, 2013 12:18 pm

*controller is Mystery 200A with Bec (in project box under the deck)

*Battery is 3X5A - 6S total 15A

*turingy speed regulator
http://www.youtube.com/watch?v=gyQIzej8X2w

*Batt-man wattmeter (not in the pictures) work great!
http://batt-man.com/

*65 sprocket , 11 pinion

also made him rear wheel cover and freewheel as you can see in the pictures
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Re: GoPed Sport Electric Conversion

Postby Silenthunter » Fri Aug 02, 2013 12:38 pm

Hi Guy H,

I like it more with out the fender...:)

Could you please reply to the message i sent to u earlier. I am thinking to buy the ESR 750 frame. I think it will be just easier to place the engine inside that cylinder and then add the rear braking kit, but it is kinda expensive $125 plus $18 shipping (frame only).
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Re: GoPed Sport Electric Conversion

Postby Silenthunter » Sat Aug 03, 2013 10:05 pm

Guys,

If anyone did the conversion of the gas goped to electric please post you pictures and the components list of the built.

Thank you!
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Re: GoPed Sport Electric Conversion

Postby Silenthunter » Mon Aug 05, 2013 10:47 pm

Guys,

I am looking for a 11T or 12T chain motor pinion that has the same diameter as the engine shaft (Turnigy SK3 6374 - 192kv). Where is the best place to buy one?
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