Search found 99 matches

by Amiran
Oct 03 2019 10:25am
Forum: Items for Sale - New
Topic: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China
Replies: 1337
Views: 260820

Re: QS MOTOR,0.5-14kW Electric Hub Motor Manufacture China

Have been running qs 205 50h be for 2.5 years, thebike is always parked outdoors and open to weather elements. Have pushed 300a peaks through it. (100a battery fuse blown couple of times) Was getting hot but not too hot. Opened recently for servicing and only found very minor signs of rust. Cleaned ...
by Amiran
Oct 03 2019 10:20am
Forum: Items for Sale - New
Topic: CHEAP NEW ORIGINAL 18650 BATTERY CELLS AND PACKS
Replies: 798
Views: 220250

Re: CHEAP NEW ORIGINAL CELLS LI-ION 18650

I have heard there is update coming to offer.
by Amiran
Sep 28 2019 5:41am
Forum: E-Bike Technical
Topic: DIY 0-5k throttle
Replies: 25
Views: 2194

Re: DIY 0-5k throttle

Looked up TPS, they come variety of price and make.
Good thinking!
by Amiran
Sep 26 2019 3:50pm
Forum: Motor Technology
Topic: 100A through a MOSFET? FLIR video
Replies: 1
Views: 486

Re: 100A through a MOSFET? FLIR video

Thanks.
Great illustration on impact of heat sinking for me.
by Amiran
Sep 25 2019 3:38pm
Forum: Motor Technology
Topic: Serious FOCer (84V VESC 6 based controller)
Replies: 258
Views: 31961

Re: Serious FOCer (84V VESC 6 based controller)

Sounds right and practical too.
Easy repairs are good thing when you are experimenting.
Let me know if we can arrange something.
Thanks.
by Amiran
Sep 25 2019 2:51pm
Forum: Motor Technology
Topic: Serious FOCer (84V VESC 6 based controller)
Replies: 258
Views: 31961

Re: Serious FOCer (84V VESC 6 based controller)

Hi Shaman, Running now 11s but looking to build 13s soon. I am sorry to ask I do not know vescs very well yet, will the controller turn the power down if it overheats? What part will get damaged for overheat due to over current? Would it be to mosfets? What I'm trying to say here would it be possibl...
by Amiran
Sep 24 2019 9:02am
Forum: Motor Technology
Topic: Serious FOCer (84V VESC 6 based controller)
Replies: 258
Views: 31961

Re: Serious FOCer (84V VESC 6 based controller)

Shaman, Would like your thoughts on testing your foc unit with hub motor QS 205 3.5T in 20 inch moto wheel with 120A max battery current peaks and 60-80a continuous. If cheapo old tech 24F controller survived this, your s should do with 12Fets? No? I am located in UK and happy to take a part. Thanks
by Amiran
Sep 24 2019 8:56am
Forum: Motor Technology
Topic: Smooth eDrive - VESC compatible ESC development
Replies: 13
Views: 2044

Re: Smooth eDrive - VESC compatible ESC development

Thanks for an update.
All the best of luck.
by Amiran
Sep 23 2019 1:54pm
Forum: Motor Technology
Topic: Smooth eDrive - VESC compatible ESC development
Replies: 13
Views: 2044

Re: Smooth eDrive - VESC compatible ESC development

Hi,
What's the continuation of this story?
by Amiran
Sep 23 2019 8:56am
Forum: Motor Technology
Topic: VESC Vedder for 'big' Hub Motor
Replies: 1
Views: 327

VESC Vedder for 'big' Hub Motor

Hi,
I am wondering is there anyone thought perhaps tried to run direct drive Hub motor like QS or Mxus with Vesc type controller ?

Would it be difficult/expensive to manufacture vesc to run 300-450 amps but low volts?

Ideas anyone?
by Amiran
Sep 18 2019 3:50pm
Forum: Items for Sale - Used
Topic: LG Chem 37v30Ah modules
Replies: 12
Views: 1668

Re: LG Chem 37v30Ah modules

Do you still have them?
Price?
by Amiran
Sep 13 2019 4:19pm
Forum: E-Bike General Discussion
Topic: A2B Metro Rearming 3kW Motor + 20700B x 104
Replies: 80
Views: 9171

Re: A2B Metro Rearming 3kW Motor + 20700B x 104

Tried again, I do not seem to get my head around this interface...
by Amiran
Sep 13 2019 4:16pm
Forum: E-Bike Build Threads / Photos & Video
Topic: A2B build
Replies: 84
Views: 8868

Re: A2B build

Then watch for cracks if they start to appear ear the welds of tubelar and cast alloy sections of swing -arm. You never know.
by Amiran
Sep 13 2019 3:13pm
Forum: E-Bike Build Threads / Photos & Video
Topic: A2B build
Replies: 84
Views: 8868

Re: A2B build

A2B Metro dropout plates for metal cutting.
This worked for me after i snapped ears off the original one.
by Amiran
Sep 13 2019 3:10pm
Forum: E-Bike General Discussion
Topic: A2B Metro Rearming 3kW Motor + 20700B x 104
Replies: 80
Views: 9171

Re: A2B Metro Rearming 3kW Motor + 20700B x 104

Ianhill wrote:
Sep 13 2019 12:17pm
Mines up for sale cheap if u wanted it south wales.

Or u could pin yours like a snapped leg four plates ought to do it ;)
Did you get my PM?
by Amiran
Sep 13 2019 2:54pm
Forum: E-Bike General Discussion
Topic: A2B Metro Rearming 3kW Motor + 20700B x 104
Replies: 80
Views: 9171

Re: A2B Metro Rearming 3kW Motor + 20700B x 104

fechter wrote:
Sep 13 2019 9:37am
First time I've seen one break there. I have seen a couple of broken swing arms.

Time for a new frame.
Funny enough swing arm doing well apart from dropouts that suffered bit in the past.
by Amiran
Sep 13 2019 2:05am
Forum: E-Bike General Discussion
Topic: A2B Metro Rearming 3kW Motor + 20700B x 104
Replies: 80
Views: 9171

Re: A2B Metro Rearming 3kW Motor + 20700B x 104

Hey Ianhill, long time.
Thinking of it probably it is possible but dreaming of donor a2b metrooooo
by Amiran
Sep 12 2019 5:07pm
Forum: Items Wanted
Topic: A2b Metro frame wanted. UK & EU
Replies: 0
Views: 478

A2b Metro frame wanted. UK & EU

Cracked my frame so need new one.
by Amiran
Sep 12 2019 4:58pm
Forum: E-Bike General Discussion
Topic: A2B Metro Rearming 3kW Motor + 20700B x 104
Replies: 80
Views: 9171

Re: A2B Metro Rearming 3kW Motor + 20700B x 104

20190912_230831-360x597.jpg Been riding all this time. Changed air shocks couple of times. Las week the frame cracks where noticed and Ihave decided to try brazing. I might have destroyed the alloy completely by overheating it. Needs to be said once a week I was shopping with my partner on rear plu...
by Amiran
Aug 09 2019 9:34am
Forum: Items for Sale - Used
Topic: A2B Metro QS 50H 250 Motor Back in use
Replies: 2
Views: 634

Re: A2B Metro QS 50H 250 Motor £950 500A controller

Changed the Job so ebike comes to hand.
Not selling any more.
by Amiran
May 17 2019 7:41am
Forum: Motor Technology
Topic: BESC - beefed up VESC motor controller for high power ebikes
Replies: 142
Views: 23092

Re: BESC - beefed up VESC motor controller for high power ebikes

I want to follow this build on every platform i find it :D .

Great Job,
Keep going
by Amiran
Apr 28 2019 6:47am
Forum: Items for Sale - Used
Topic: A2B Metro QS 50H 250 Motor Back in use
Replies: 2
Views: 634

A2B Metro QS 50H 250 Motor Back in use

Using the bike again for commute to work and back.

These 20700 s are still running strong btw
by Amiran
Apr 28 2019 6:21am
Forum: E-Bike General Discussion
Topic: A2B Metro Rearming 3kW Motor + 20700B x 104
Replies: 80
Views: 9171

Re: A2B Metro Rearming 3kW Motor + 20700B x 104

This bike worked well for me, saved hundreds of hours in traffic and couple throusand on travelcards.
Will be selling it as no more needed as my travel has changed and priority goes to small Xiaomi copycat scooter 2wd conversion.
by Amiran
Jan 08 2019 4:16pm
Forum: E-Bike General Discussion
Topic: Building a Powerful Ebike
Replies: 58
Views: 4144

Re: Building a Powerful Ebike

I am planing to build a powerful ebike [my 2nd one] but I not sure what I need. First I'm either gonna need a fat bike or a regular bike with 150mm dropout for obvious reasons but I'm not sure what to get as I dont want any of those frames that look like dirt bikes like the grey borg or stealth bom...