Search found 311 matches

by bionicon
Dec 08 2019 9:20am
Forum: E-Bike Technical
Topic: A low-cost e-MTB Production log
Replies: 52
Views: 2160

Re: A low-cost e-MTB Production log

This looks to be dead-end.....just like the neematic :shock:
by bionicon
Dec 08 2019 6:42am
Forum: Motor Technology
Topic: Max erpm and field wakening
Replies: 8
Views: 329

Re: Max erpm and field wakening

marcos, thanks for the detailed description. Very well explained and easy to understand. Hey, Madin i was talking about a nuc 24fet and a alien 15070 motor https://alienpowersystem.com/shop/brushless-motors/150mm/15070s-sensored-outrunner-brushless-motor-27kv-30000w-paramotor/ Planning for a light ...
by bionicon
Nov 27 2019 2:27pm
Forum: Motor Technology
Topic: Max erpm and field wakening
Replies: 8
Views: 329

Re: Max erpm and field wakening

I don't know if it's relevant, there is a thread by Lebowski where he added external field coils to change the field, which increased the eRPM of the system. Not sure if field weakening would do the same thing or not, as I don't really understand most of what's in taht thread. :oops: https://endles...
by bionicon
Nov 27 2019 2:11pm
Forum: Motor Technology
Topic: Max erpm and field wakening
Replies: 8
Views: 329

Re: Max erpm and field wakening

Hey, Madin i was talking about a nuc 24fet and a alien 15070 motor https://alienpowersystem.com/shop/brush ... paramotor/
Planning for a light downhillbike arround 35kg :D
by bionicon
Nov 27 2019 7:42am
Forum: Motor Technology
Topic: Max erpm and field wakening
Replies: 8
Views: 329

Max erpm and field wakening

Hope this is the right section, its about max erpm and field wakening. If my controller can do 60000 max erpm my motor has 21polepairs and i am using 20s (72 volt nominal 84 max) and a kv of 34tr/volt. So i become at max voltage 59976 erpm within the range of my controller, but when i use field wake...
by bionicon
Nov 13 2019 1:32am
Forum: E-Bike General Discussion
Topic: surron bicycle with qs205 middrive
Replies: 54
Views: 4086

Re: surron bicycle with qs205 middrive

pity to hear, i had also a spare parts list from them.
If you want i will look for the chinese salesman from alibaba, but he tried to ripp me off .
by bionicon
Sep 01 2019 11:19am
Forum: E-Bike General Discussion
Topic: E-S LMX 64 Bike Owners
Replies: 293
Views: 19369

Re: E-S LMX 64 Bike Owners

Got race pics? Did not get them yet. I was told qlbix guys feared motor overheat during 30 minutes race son they talked organisers to do only 25 minutes haha. I was third with my 70kg qs205 middrive surron, sure the lmx64 was faster due the fact this was a very technical racetrack where the light l...
by bionicon
Sep 01 2019 1:28am
Forum: Items for Sale - New
Topic: Nucular electronics - complete kit for ev! [beta]
Replies: 909
Views: 81913

Re: Nucular electronics - complete kit for ev! [beta]

ideal would be when turn key its on pedalassist and low power afther command on the sreen to go to trottle and full power :D
by bionicon
Aug 31 2019 2:09am
Forum: Items for Sale - New
Topic: Nucular electronics - complete kit for ev! [beta]
Replies: 909
Views: 81913

Re: Nucular electronics - complete kit for ev! [beta]

okay question about the settings in the controller 😀 is it possible to switch easy between pedalassist and trottle?
by bionicon
Aug 20 2019 11:48am
Forum: Items for Sale - New
Topic: Nucular electronics - complete kit for ev! [beta]
Replies: 909
Views: 81913

Re: Nucular electronics - complete kit for ev! [beta]

Has anyone actually tried the 12F with the LMX 161 motor? I know from earlier in the thread that it 'works' but does anyone have a first hand comparison to the Kelly? I'm looking at using an LMX motor for a custom project so I'm curious. Sorry if this has already been answered. Ask Merlin, he did t...
by bionicon
Aug 18 2019 6:20am
Forum: E-Bike Non-hub Motor Drives
Topic: higher or lower kv
Replies: 110
Views: 9514

Re: higher or lower kv

so i have to check the erpm of the sab 96100 :wink:
by bionicon
Aug 17 2019 4:34pm
Forum: E-Bike Non-hub Motor Drives
Topic: higher or lower kv
Replies: 110
Views: 9514

Re: higher or lower kv

For the sabvoton 96100 is 250 max, but maybe i buy unlocked to go to 300 a350 max.
by bionicon
Aug 17 2019 10:59am
Forum: E-Bike Non-hub Motor Drives
Topic: higher or lower kv
Replies: 110
Views: 9514

Re: higher or lower kv

2.2 times the torque seems good :P
by bionicon
Aug 14 2019 3:33pm
Forum: E-Bike Non-hub Motor Drives
Topic: higher or lower kv
Replies: 110
Views: 9514

Re: higher or lower kv

That was a bit of a thread.. I don't have the energy to read it just now. Where does the 90% claimed efficiency come from, do you know? It's very uncommon for the manufacturer to understate performance specs, that's why i wonder :D no i don't just pick this hub for weight(9 kilos) and the power it ...
by bionicon
Aug 14 2019 2:20pm
Forum: E-Bike Non-hub Motor Drives
Topic: higher or lower kv
Replies: 110
Views: 9514

Re: higher or lower kv

here you find some info viewtopic.php?t=92101
by bionicon
Aug 14 2019 12:47pm
Forum: E-Bike Non-hub Motor Drives
Topic: higher or lower kv
Replies: 110
Views: 9514

Re: higher or lower kv

I want to use the mxus 3k turbo :o
by bionicon
Aug 14 2019 11:51am
Forum: E-Bike Non-hub Motor Drives
Topic: higher or lower kv
Replies: 110
Views: 9514

Re: higher or lower kv

It wil be a off-road bike and will not do more then 70km/u. On the recumpent-site i always calculate for gearing and speed, just dont know for sure at what % for speed,with a hub motor?
by bionicon
Aug 14 2019 9:49am
Forum: E-Bike Non-hub Motor Drives
Topic: higher or lower kv
Replies: 110
Views: 9514

Re: higher or lower kv

I am planning a hub-middrive,the battery is the fixed factor it wil be a 30s (126volt) with 80amps.
So because the amps are limited i am better of with a low kv-motor for a fast acceleration-bike?
Or a high kv motor and gear it down? Still confused :shock: Controller will be sabvoton 96100.
by bionicon
Aug 10 2019 11:12am
Forum: E-Bike Non-hub Motor Drives
Topic: Mid drive using hub motor
Replies: 20
Views: 1271

Re: Mid drive using hub motor

nice:) link? I don't have link, its my design and you are The first person who see it :) have you built a prototype type yet, or just a computer rendering?? are you planning serial production and global distribution or maybe just a one off or for domestic market.. plz keep us updated if you build o...
by bionicon
Aug 06 2019 2:33am
Forum: E-Bike Technical
Topic: A low-cost e-MTB Production log
Replies: 52
Views: 2160

Re: A low-cost e-MTB Production log

this is a neematic copy, hope to see more😁
by bionicon
Aug 06 2019 2:21am
Forum: E-Bike Non-hub Motor Drives
Topic: Sur-Ron - New Mid drive Bike
Replies: 4235
Views: 368854

Re: Sur-Ron - New Mid drive Bike

i think all surron dealers should sell frames only. With the frame you have a good diy base😀
by bionicon
Jul 31 2019 1:38pm
Forum: E-Bike General Discussion
Topic: surron bicycle with qs205 middrive
Replies: 54
Views: 4086

Re: surron bicycle with qs205 middrive

I am using a sabvoton 72200 unlocked with the 4t, settings are 240 batt amps and 500phaseamps ,had no problems so far :D
by bionicon
Jul 31 2019 1:22pm
Forum: E-Bike General Discussion
Topic: surron bicycle with qs205 middrive
Replies: 54
Views: 4086

Re: surron bicycle with qs205 middrive

qs kv table for the 205 goes to 1200 rpm, thats still lower than 20 000 erpm and not a lot. I'd guess you can go to 30s 3t and 1700rpm and downgear it :D what controller would you use though? You could ask QS what they think about it. I can't see bearings getting issues or structural issues, maybe ...
by bionicon
Jul 31 2019 12:48pm
Forum: E-Bike General Discussion
Topic: surron bicycle with qs205 middrive
Replies: 54
Views: 4086

Re: surron bicycle with qs205 middrive

I think you will get more starting torque if you keep your 4T and go 30s and more reduction. But you are limited in amp with your controller, so I am not sure. I want to try the 96120 sabvoton unlocked with a 30s 7p samsung 40T, so it wil be good for 250 battery-amps. About the 4t motor i don't thi...
by bionicon
Jul 31 2019 10:38am
Forum: E-Bike General Discussion
Topic: surron bicycle with qs205 middrive
Replies: 54
Views: 4086

Re: surron bicycle with qs205 middrive

now i have a 4t and 20s battery and thats fine it go's like a spear with full battery to 50km/u before fieldwakening qicks in. With a 5t and 30s it will go arround 70km/u before fieldwakening. And a 5t has more startingtorque( i believe).A 3t motor would make arround 1700rpm at 126 volt, thats, to m...