Razor e300 ultra. Technical guide

Lightweight / Folding / Portable EVs - seats optional
boars   10 W

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Re: Razor e300 ultra. Technical guide

Post by boars » Nov 06 2019 7:40pm

That's a fair amount of power :mrgreen:

I thought you'd have to run tubes on a split wheel?
Does the split have some sort of rubber o-ring or something?

Ianhill   1 MW

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Re: Razor e300 ultra. Technical guide

Post by Ianhill » Nov 06 2019 7:48pm

The split does have a tube in there but a rubber ring made from tube would seal it up the bolt holes are no issue I think it's just done with a tube so the factory scooters don't get flats from crappy builders messing the seal installation up keep it simple as u can as China does best.

Most I've run is 16s at 58amp on a 1600w brushless and that got to 48mph, the way I've locked this hub down I could push hard no problem id like to get more volts like 20s 5p worth of 21700 molicel eventually and see just how much I can get from one little wheel.

Ianhill   1 MW

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Re: Razor e300 ultra. Technical guide

Post by Ianhill » Nov 09 2019 6:47pm

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Couldn't handle the weight so I kept on hacking away with what ever i could find and end up with what I got both plates were over 2kg now they don't weigh 1 kg between them with fixings not bad for hand made.
You got to be clever enough to know what to do but dumb enough to give 20 hours of your life up if all you got is a vice and basic tools but I'm a happy dummy as it's turned out decent and they look like twins good enough into fooling me into kissing the wrong one if it wernt for the disc brake hanger.
Just got to debur and buff them up now I'll get the frame chromed proberly to make it pop I was gonna galvanize it then have it powder coated so just have to twiddle my thumbs on that one.

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ESR_RSE   10 mW

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Re: Razor e300 ultra. Technical guide

Post by ESR_RSE » Nov 09 2019 8:30pm

look like twins good enough into fooling me into kissing the wrong one

:bigthumb:

Ianhill   1 MW

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Re: Razor e300 ultra. Technical guide

Post by Ianhill » Nov 10 2019 1:25pm

Cheers esr I like to use colourful words get my point across.
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Debured polished and looking decent, closely tapeed in place to give an idea of what I'm doing, the odd match fixings for the brake are temporary.

cheapcookie   100 W

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Re: Razor e300 ultra. Technical guide

Post by cheapcookie » Nov 10 2019 4:11pm

I was just given a red e300 for freeeeeee :D
I have two ninebot ES2 motors, I will try to fit them.

In either case I will want to put wider handlebars by following your guide.
Best/worst case scenario I will put 6384 outrunner with vesc

Ianhill   1 MW

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Re: Razor e300 ultra. Technical guide

Post by Ianhill » Nov 10 2019 4:27pm

cheapcookie wrote:
Nov 10 2019 4:11pm
I was just given a red e300 for freeeeeee :D
I have two ninebot ES2 motors, I will try to fit them.

In either case I will want to put wider handlebars by following your guide.
Best/worst case scenario I will put 6384 outrunner with vesc
Red one never seen an e300 that colour in UK before, get a build thread up let us now how u get on, I'd say the two ninebot motors on vescs be a nice build more torque than a single 6384 but that has gearing choices and higher rpm so sound wicked when u give it the beans, two hub motors be quite whooshy mind u have them on vescs given it what for.

cheapcookie   100 W

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Re: Razor e300 ultra. Technical guide

Post by cheapcookie » Nov 10 2019 4:35pm

Ianhill wrote:
Nov 10 2019 4:27pm
cheapcookie wrote:
Nov 10 2019 4:11pm
I was just given a red e300 for freeeeeee :D
I have two ninebot ES2 motors, I will try to fit them.

In either case I will want to put wider handlebars by following your guide.
Best/worst case scenario I will put 6384 outrunner with vesc
Red one never seen an e300 that colour in UK before, get a build thread up let us now how u get on, I'd say the two ninebot motors on vescs be a nice build more torque than a single 6384 but that has gearing choices and higher rpm so sound wicked when u give it the beans, two hub motors be quite whooshy mind u have them on vescs given it what for.
how many outrunners have u tried? you had a 6374 running on vesc 6 correct?
Can you talk sprockets and chain choice for the 6374?

Ianhill   1 MW

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Re: Razor e300 ultra. Technical guide

Post by Ianhill » Nov 10 2019 5:04pm

No I've not owned one only seen them in action I think there's around a 8-1 gearing on a 6.5inch wheel and a 144kv if I'm correct somewhere around there, good thermal cooling path is needed mind they tend to warm up a bit more than the hubs.

I've run a hoverboards motor on a vesc and that thing was shockingly torquey on it's own when run with vesc 12s performed real well so the 2wd version u have in mind would proberly be the best longevity wise take a beating.

cheapcookie   100 W

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Re: Razor e300 ultra. Technical guide

Post by cheapcookie » Nov 10 2019 6:39pm

Ianhill wrote:
Nov 10 2019 5:04pm
No I've not owned one only seen them in action I think there's around a 8-1 gearing on a 6.5inch wheel and a 144kv if I'm correct somewhere around there, good thermal cooling path is needed mind they tend to warm up a bit more than the hubs.

I've run a hoverboards motor on a vesc and that thing was shockingly torquey on it's own when run with vesc 12s performed real well so the 2wd version u have in mind would proberly be the best longevity wise take a beating.
The solid core tires are PIA to swap out and not comfortable to ride... pneumatic is the way to go here, but Ill give it a shot, expecting the scooter to land this week or tonight, will see

Also, my understanding is that motor and battery cages are welded to the platform? I kinda don't want that trash...

Ianhill   1 MW

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Re: Razor e300 ultra. Technical guide

Post by Ianhill » Nov 10 2019 7:14pm

I pulled the tyre of the hoverboard hub motor with 3 wood clamps and then microwaved it to get it back on but I get it's a solid ride not to forgiving.
Not to sure what u mean by motor or battery cages being welded ?

cheapcookie   100 W

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Re: Razor e300 ultra. Technical guide

Post by cheapcookie » Nov 10 2019 7:16pm

Ianhill wrote:
Nov 10 2019 7:14pm
I pulled the tyre of the hoverboard hub motor with 3 wood clamps and then microwaved it to get it back on but I get it's a solid ride not to forgiving.
Not to sure what u mean by motor or battery cages being welded ?
Image

Ianhill   1 MW

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Re: Razor e300 ultra. Technical guide

Post by Ianhill » Nov 11 2019 1:47pm

cheapcookie wrote:
Nov 10 2019 7:16pm
Ianhill wrote:
Nov 10 2019 7:14pm
I pulled the tyre of the hoverboard hub motor with 3 wood clamps and then microwaved it to get it back on but I get it's a solid ride not to forgiving.
Not to sure what u mean by motor or battery cages being welded ?
Image
Not alot of ground clearance same as the stock motor occasionally it could ground out on a kurb etc, protects the motor well mind but i get more air in there the rc motors love getting hot specially when geared hard.

Would like to build a chaindrive again but it have to be a liquid cooled motor and controller with billet wheels so it's gonna be stupid cash to make something like that take ages of saving and finding the rite bits cheap as poss.

cheapcookie   100 W

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Re: Razor e300 ultra. Technical guide

Post by cheapcookie » Nov 13 2019 5:43pm

Ianhill wrote:
Nov 11 2019 1:47pm
cheapcookie wrote:
Nov 10 2019 7:16pm
Ianhill wrote:
Nov 10 2019 7:14pm
I pulled the tyre of the hoverboard hub motor with 3 wood clamps and then microwaved it to get it back on but I get it's a solid ride not to forgiving.
Not to sure what u mean by motor or battery cages being welded ?
Image
Not alot of ground clearance same as the stock motor occasionally it could ground out on a kurb etc, protects the motor well mind but i get more air in there the rc motors love getting hot specially when geared hard.

Would like to build a chaindrive again but it have to be a liquid cooled motor and controller with billet wheels so it's gonna be stupid cash to make something like that take ages of saving and finding the rite bits cheap as poss.
what's wrong with a high quality air cooled motor? like a neu or something

Ianhill   1 MW

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Re: Razor e300 ultra. Technical guide

Post by Ianhill » Nov 13 2019 8:03pm

Never seen the neu motors I'm a big fan of Inrunners like a bit of rpm but it's got to be controlled so the 32 and 44 series motor look ideal on the rim side they max out just right for the gearing on one these wheels 10000rpm with a 8-1 gearing on a 6.5 wheel is around 50mph 4kw is just enough to keep it there so maybe push gearing and try get a 9-1 so it's not giving full torque quiet often at full beans it can keep up then around 45mph and not overheat take a good kicking and be very responsive, I've seen that flipsky top motor is on deal very tempted to get one but it's out my £€$ bracket without saving up I csnt drop £450 on it easily, found some billet rims too I could get and make the hubs over time like I done with the front mmm very tempted to start hording more crap.

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