Search found 192 matches

by Elektrosherpa
Nov 25 2021 6:08am
Forum: EScooter/EMotorcycle Build Threads
Topic: Ninja 250 "Clone" Made in China
Replies: 88
Views: 24379

Re: Ninja 250 "Clone" Made in China

I know it's a bit late to ask this-but why didn't you reinforce the horrible bends of the lower frame tubes in the front part,
as you did it with the other two/four bad bends ???
IMG_20211117_201734.jpg
IMG_20211117_201734.jpg (96.99 KiB) Viewed 77 times
by Elektrosherpa
Nov 25 2021 6:04am
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 144
Views: 7840

Re: Conversion of a Bultaco Sherpa

By the way: Today I finally received the message that they refused my refund demand- because I did not accept the "solutions" offered by the seller... In consequence, I immediately opened a new case and re-submitted the whole load of evidence, but I am afraid this will not help. Next, I wi...
by Elektrosherpa
Nov 25 2021 6:03am
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 144
Views: 7840

Re: Conversion of a Bultaco Sherpa

One thiing is for sure: the plug you currently have on the battery won't be able to bear 150A for long, it's not made for such high current. The one on the original picture was okay. That's what I told Alibaba-all the C13 sockets I have ever seen are made for a current of 10 A, some rare exceptions...
by Elektrosherpa
Nov 23 2021 12:26pm
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 144
Views: 7840

Re: Conversion of a Bultaco Sherpa

Ah ok, I thought you were buying one. In which case then yes, your drawing was correct, and yes it's better to add the precharge resistor if you plan on connecting/disconnecting your battery often. I will be obliged to disconnect the battery often, because they didnt only put a weak BMS, but also d...
by Elektrosherpa
Nov 22 2021 8:30am
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 144
Views: 7840

Re: Conversion of a Bultaco Sherpa

Thanks for the drawing. The problem is: I dont have this ANT BMS. I have the cheap 65A BMS-thing which the seller put into the battery, and I wanted to test it as it is. In this case I will need the precharge stuff, won't I ? Btw-It looks like I will not get any refund or something: The last news fr...
by Elektrosherpa
Nov 21 2021 6:25pm
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 144
Views: 7840

Re: Conversion of a Bultaco Sherpa

I dont think the shitty BMS, which my battery seller has used, can be turned off / on, or can be adjusted in some way - and even if so, I dont know how, because I havent got any documentation with it. So let me sum up in my own words, to get it clear: I will need a "precharge circuit", no ...
by Elektrosherpa
Nov 20 2021 5:05am
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 144
Views: 7840

Re: Conversion of a Bultaco Sherpa

Nobody wants to say something about this wiring plan? :(
by Elektrosherpa
Nov 18 2021 6:53pm
Forum: EScooter/EMotorcycle Build Threads
Topic: '91 Suzuki DR 250S
Replies: 18
Views: 501

Re: '91 Suzuki DR 250S

Is that the aim to get an even distance on either side, assuming lined up with the pivot point it should be possible to get it pretty close where the only time it rubs would be lifting the bike without a spring and bottoming out the bike? Yes, in the most frequently used position (this would be wit...
by Elektrosherpa
Nov 18 2021 2:03pm
Forum: EScooter/EMotorcycle Build Threads
Topic: '91 Suzuki DR 250S
Replies: 18
Views: 501

Re: '91 Suzuki DR 250S

j bjork wrote:
Nov 18 2021 5:49am
...also test the whole range by taking off the spring.
Even better so ! :bigthumb:
by Elektrosherpa
Nov 18 2021 5:05am
Forum: EScooter/EMotorcycle Build Threads
Topic: '91 Suzuki DR 250S
Replies: 18
Views: 501

Re: '91 Suzuki DR 250S

From the pics, I think if you put the motor to this position,
the chain slack will change too much when compressing the rear spring.

You should test the motor position with the bike standing on its wheels,
and loaded with driver weight.
by Elektrosherpa
Nov 16 2021 5:10am
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 144
Views: 7840

Re: Conversion of a Bultaco Sherpa

Just a little update of the battery story: Still no technical data of the battery received, seller stopped doing anything. And still no decision from Alibaba. Last offer was 50$ refund, which I didnt accept. I have been using the waiting time (this project consists of 50% waiting...thanks to China) ...
by Elektrosherpa
Nov 11 2021 4:15am
Forum: EScooter/EMotorcycle Build Threads
Topic: Ninja 250 "Clone" Made in China
Replies: 88
Views: 24379

Re: Ninja 250 "Clone" Made in China

Dui, ni shuo de dui wrote:
Nov 08 2021 1:45am

So here is how it looks like from the factory:
IMG_20211107_170231.jpg
Honestly-I have never seen such a lousily made frame.
Even if a Moroccan or Pakistani backyard welder would build a motorbike, it would look much better.

I guess it is a good idea to reinforce that...
by Elektrosherpa
Nov 09 2021 6:01pm
Forum: EScooter/EMotorcycle Build Threads
Topic: RIPPY SCOOT
Replies: 54
Views: 1733

Re: RIPPY SCOOT

Both front and rear calipers have double pistons ie they are the same size hydraulically. Then chances are that you will overbrake the rear if you put them together. The first attempts to control front and rear brakes with ONE lever (as far as I remember in the 1980s by MotoGuzzi), was done simply ...
by Elektrosherpa
Nov 04 2021 6:57pm
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 144
Views: 7840

Re: Conversion of a Bultaco Sherpa

Would you be willing to tell who your supplier at Alibaba was? I am also looking for a 72v battery and would like to avoid such a supplier if possible. Sure. I dont see any reason to keep it secret. It's called: Dongguan Huanhuan Energy Technology Co. Ltd. However I am quite sure that this is not t...
by Elektrosherpa
Nov 03 2021 6:21am
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 144
Views: 7840

Re: Conversion of a Bultaco Sherpa

What worries me is the cells ... Earlier in the discussion you mentionned these: 54 Ah/72 V battery, with 5c peak and 3c permanent discharge capability. If these figures were to be correct, that would mean that your battery pack is capable to output: -54 x 5 = 270Amps peak -54 x 3 = 162 amps contin...
by Elektrosherpa
Nov 02 2021 5:04pm
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 144
Views: 7840

Re: Conversion of a Bultaco Sherpa

download google translate app to your smart phone if u can. it will help understand many chinese characters. Yes, I have done some translating (not with smartphone, coz I hate the small screen to work with, but on PC)- and I have found kind of the same meanings. I also manged to figure out the func...
by Elektrosherpa
Nov 02 2021 3:54pm
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 144
Views: 7840

Re: Conversion of a Bultaco Sherpa

Thanks a lot for the advice.

Alibaba had already offered 100$ refund (what I refused), so the ANT BMS should be within reach.

But I am still waiting for their final decision...
by Elektrosherpa
Nov 01 2021 9:40am
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 144
Views: 7840

Re: Conversion of a Bultaco Sherpa

After a lot of writing on Alibaba, the battery seller proposes now to send me another BMS , and instructions how to exchange it. So now it would be highly important to know a good BMS, so that I can tell them what they have to send. Mabye someone can tell an exact brand name / model of a BMS which w...
by Elektrosherpa
Oct 30 2021 4:44am
Forum: EScooter/EMotorcycle Build Threads
Topic: RMZ 450 electric conversion
Replies: 34
Views: 3171

Re: RMZ 450 electric conversion

Hi from US. thats a really nice bike with decent performance. I'm trying to build a bike also with the qs 138 90h so i wonder were did you get that small sprocket for the motor? Mine come with 14 tooth only and cant find anywere to buy a smaler like 11 or even 12 tooth. What are the dimensions of t...
by Elektrosherpa
Oct 29 2021 5:43am
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 144
Views: 7840

Re: Conversion of a Bultaco Sherpa

The seller replied that the 65 A BMS can handle 160 A permanent and 270 A peak discharge.... They sent a spreadsheet to Alibaba which is meant to proof that: BatterySeller-evidence5.jpg But I cannot read chinese, and I am not willing to accept some sourceless spreadsheet as evidence... Can anyone he...
by Elektrosherpa
Oct 26 2021 4:38am
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 144
Views: 7840

Re: Conversion of a Bultaco Sherpa

Thanks for your reply. The taobao link doesnt work for me-probably I need to be logged in, to see what you see? The lady of the battery seller on Alibaba, who has been treating my order, replied to me that the BMS could handle the currents I need (she explicitely mentioned the 54 Ah/72 V battery, wi...
by Elektrosherpa
Oct 22 2021 10:49am
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 144
Views: 7840

Re: Conversion of a Bultaco Sherpa

Thanks for your assessment. This is not what I ordered- they had promised me a battery for ~165 A permanent and ~270 A peak discharge. I wrote a complaint to the seller on Alibaba. We'll see how they react. I paid with Paypal, so there are chances to get my money back if they don't offer a satisfyin...
by Elektrosherpa
Oct 21 2021 9:49am
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 144
Views: 7840

Re: Conversion of a Bultaco Sherpa

Here are the front and back side of the charger. I labelled the texts which I would like to understand. P.S. Meanwhile I have tried to translate the chinese texts by help of online chinese ocr. Would be cool if someone could confirm or correct my findings. charger-buttons-back.jpg Back Side: top lef...
by Elektrosherpa
Oct 21 2021 9:18am
Forum: EScooter/EMotorcycle Build Threads
Topic: Conversion of a Bultaco Sherpa
Replies: 144
Views: 7840

Re: Conversion of a Bultaco Sherpa

Finally the battery + charger have arrived! "Only" 12 weeks (= 1/4 year !!!!) after payment... Packing was good, battery doesn't look like the picture in the offer on "alibaba". But at least the measures are as ordered. Unlike promised, there was no documentation in english. Ther...
by Elektrosherpa
Oct 14 2021 10:35am
Forum: EScooter/EMotorcycle Build Threads
Topic: RIPPY SCOOT
Replies: 54
Views: 1733

Re: RIPPY SCOOT

RIPPERTON wrote:
Oct 14 2021 4:58am
They say it will arrive in AU customs on 28 AUG
hmm...
August 28 is almost 7 weeks ago....