Search found 281 matches

by bionicon
May 25 2019 11:09am
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: Derbi senda with hacker motor
Replies: 23
Views: 4204

Re: Derbi senda with hacker motor

can somebody maybe explain line 27 and 28 of the list? Thx 27 would be change in amps per pwm cycle and 28 would be the duty cycle increase limit per cycle. That's my guess anyway. Thx, already changed motor and controller , now its a qs 138 motor 3000w and a sabvoton 72200 controller,this combo gi...
by bionicon
May 22 2019 8:47am
Forum: Motor Technology
Topic: Motor noise - why are some motors silent?
Replies: 4
Views: 241

Re: Motor noise - why are some motors silent?

Its all in the rpm of the motors, a hub motor sees maxx arround 1100rpm thats why he is silent. The middrives are much higher in rpm ,and then be geared down. The surron is arround 4000 to 6000rpm, when rpms raise the wining begins. I have a 138 qs middrive on my senda and he's compleetly silent und...
by bionicon
May 18 2019 4:24am
Forum: E-Bike Non-hub Motor Drives
Topic: Sur-Ron - New Mid drive Bike
Replies: 3680
Views: 255294

Re: Sur-Ron - New Mid drive Bike

https://endless-sphere.com/forums/viewtopic.php?f=28&t=89902&start=2575#p1426384 Madin: Never measured the case nor the slot but here is another old photo IMG_5365.jpg Usually ppl just throw the stock case out and put the batteries down wrapped in some tape/heat shrink photo_2019-05-16_01-01-16.jpg...
by bionicon
May 03 2019 3:34pm
Forum: Items for Sale - Used
Topic: Sabvoton SSC72150
Replies: 23
Views: 1718

Re: Sabvoton SSC72150

Pota wrote:
May 02 2019 5:44pm
locked, unlocked = HIGH risk of ruining the controller. Ive heard people destroying theire Sabvoton with 200amp.
i am using mine at 200 battamps 450faze amps and it even not get hot , hottest temp reached was 44 degree celcius :D
by bionicon
May 02 2019 10:06am
Forum: Items for Sale - Used
Topic: Sabvoton SSC72150
Replies: 23
Views: 1718

Re: Sabvoton SSC72150

Is this the locked or unlocked version?
by bionicon
Apr 27 2019 4:43am
Forum: E-Bike General Discussion
Topic: surron bicycle with qs205 middrive
Replies: 20
Views: 1417

Re: surron bicycle with qs205 middrive

https://www.youtube.com/watch?v=_dxBNIi ... 55FYwJl-jo

Small film ,me and two buddy's on a afternoon of fun
by bionicon
Apr 25 2019 3:19pm
Forum: Motor Technology
Topic: QS 3000w midmotor
Replies: 224
Views: 17436

Re: QS 3000w midmotor

Grantmac wrote:
Apr 25 2019 10:35am
What about flux weakening for that motor? RPM including reduction it seems?
I never had problems with the halls and i am running a sabvoton 72200 at 250battamps and 500fazeamps.
Flux weakening is set at 150amps without problems.
by bionicon
Apr 20 2019 1:57pm
Forum: Motor Technology
Topic: QS 3000w midmotor
Replies: 224
Views: 17436

Re: QS 3000w midmotor

indeed i have a 420 sprocket the quality of the axle is good never had problems :)
by bionicon
Apr 20 2019 3:40am
Forum: E-Bike Technical
Topic: Automatic Wheelie control / Launch control module Beta testing
Replies: 14
Views: 626

Re: Automatic Wheelie control / Launch control module Beta testing

how is the progress? will it soon be available.....i need it :lol:
by bionicon
Apr 16 2019 8:00am
Forum: E-Bike General Discussion
Topic: surron bicycle with qs205 middrive
Replies: 20
Views: 1417

Re: surron bicycle with qs205 middrive

we all go that fast :D the guy on the nyx just slips that happens time to time this has nothing to do with the frame :roll:
by bionicon
Apr 15 2019 3:35pm
Forum: E-Bike General Discussion
Topic: surron bicycle with qs205 middrive
Replies: 20
Views: 1417

Re: surron bicycle with qs205 middrive

here is a video from last trip near Brussels,my bike comes shortly in the picture, but it gives a good impression of the speed we mostly driving :D
https://www.youtube.com/watch?v=4zomYep ... YlFt0q0rtE
by bionicon
Apr 13 2019 1:40pm
Forum: E-Bike General Discussion
Topic: surron bicycle with qs205 middrive
Replies: 20
Views: 1417

Re: surron bicycle with qs205 middrive

its very quiet almost nothing just a little chainnoice. The topspeed is arround 80km/u( with field wakening) Front sprocket is 17 t rear 25t so the torque is fun wheely on trottlecommand. Never had the motor to hot. Its a really fun machine.( the language is dutch we are a group of bikenerds from fl...
by bionicon
Apr 10 2019 5:15am
Forum: E-Bike General Discussion
Topic: surron bicycle with qs205 middrive
Replies: 20
Views: 1417

Re: surron bicycle with qs205 middrive

Yes i think also aebikes is the best supplier for the frame , i dont want that someone gets the same miserie i have got with the chinees salesman.
I have ordered a shorter crankset already noticed it also on the first trip.
by bionicon
Apr 10 2019 12:26am
Forum: E-Bike Non-hub Motor Drives
Topic: Sur-Ron - New Mid drive Bike
Replies: 3680
Views: 255294

Re: Sur-Ron - New Mid drive Bike

I have a 20s 16 p with 30q samsung cells in a surron frame in an aluminum box, that is the absolute maximum and I have had to make small adjustments to the frame. I think a 20s 15p goes in easily.mini_batterijbox.jpgmini_ready to go.jpgmini_chinese spagetti(1).jpg What rear fender are you using? Do...
by bionicon
Apr 10 2019 12:25am
Forum: E-Bike Non-hub Motor Drives
Topic: Sur-Ron - New Mid drive Bike
Replies: 3680
Views: 255294

Re: Sur-Ron - New Mid drive Bike

Allex wrote:
Apr 09 2019 3:58pm
wtf, is that a hub motor on that thing?
Nice place for the pedals, bet the pedalling feels better than the with the stock pedal kit.
yes its a qs 205 4t ,the pedals are real good and feel natural just need shorter crankset :D
by bionicon
Apr 09 2019 3:01pm
Forum: E-Bike Non-hub Motor Drives
Topic: Sur-Ron - New Mid drive Bike
Replies: 3680
Views: 255294

Re: Sur-Ron - New Mid drive Bike

I have a 20s 16 p with 30q samsung cells in a surron frame in an aluminum box, that is the absolute maximum and I have had to make small adjustments to the frame. I think a 20s 15p goes in easily.
mini_batterijbox.jpg
mini_ready to go.jpg
mini_chinese spagetti(1).jpg
by bionicon
Apr 09 2019 12:17am
Forum: E-Bike General Discussion
Topic: surron bicycle with qs205 middrive
Replies: 20
Views: 1417

Re: surron bicycle with qs205 middrive

the frame starts at 800usd but ended at almost 1500usd deliverd at home because the salesman came always wit some extra's :(
by bionicon
Apr 08 2019 3:05pm
Forum: E-Bike General Discussion
Topic: surron bicycle with qs205 middrive
Replies: 20
Views: 1417

Re: surron bicycle with qs205 middrive

i had mine from alibaba but te salesman was a pain in the ass :?
by bionicon
Apr 08 2019 2:58pm
Forum: E-Bike General Discussion
Topic: surron bicycle with qs205 middrive
Replies: 20
Views: 1417

Re: surron bicycle with qs205 middrive

Found somebody on alibaba tat sells a frame only, not that i recommend that salesman
by bionicon
Apr 08 2019 2:31pm
Forum: E-Bike General Discussion
Topic: surron bicycle with qs205 middrive
Replies: 20
Views: 1417

surron bicycle with qs205 middrive

Hello, dont know if i am posting this in the right section, buts its complicated. I was looking for a middrive and i liked alot the style of the surron, but this is a moped and not a bicycle, here in Belgium when driving into the woods a bicyle is more accepted then a moped. So i decide to modifie t...
by bionicon
Mar 24 2019 5:45am
Forum: E-Bike Non-hub Motor Drives
Topic: Sur-Ron - New Mid drive Bike
Replies: 3680
Views: 255294

Re: Sur-Ron - New Mid drive Bike

I am looking for a rear shock thats about 2 inches longer that will fit the surron. I have a 26" front bicycle wheel and want the geometrie back :D .
by bionicon
Jan 30 2019 3:28pm
Forum: E-Bike Non-hub Motor Drives
Topic: higher or lower kv
Replies: 74
Views: 5611

Re: higher or lower kv

If you gonna use the 205 as a hubmotor then a 5t will give you the most starting-torque and the lowest speed, for hills you need torque so the 5t will be good. If you use the 205 as a middrive then you can take the 3.5t and gear it down for torque.
by bionicon
Nov 13 2018 2:21pm
Forum: Motor Technology
Topic: QS 3000w midmotor
Replies: 224
Views: 17436

Re: QS 3000w midmotor

Hey Madin, dont know realy if the 150amps field improve my torque also.