Search found 318 matches

by Ecyclist
Mar 23 2019 11:18pm
Forum: Battery Technology
Topic: Yet another 18650 battery build.
Replies: 77
Views: 4109

Re: Yet another 18650 battery build.

With BMS you don't know what is going on until your pack is not working. I don't trust BMS boards made in China and I'm definitely not paranoid if comes to Li-ion batteries. Except it is BT BMS that has a big display and BT connection to your Android to show you more then your testers will ever sho...
by Ecyclist
Mar 20 2019 12:03am
Forum: Battery Technology
Topic: Yet another 18650 battery build.
Replies: 77
Views: 4109

Re: Yet another 18650 battery build.

I built my own 18650 battery pack and decided on not using BMS. I have a volt meter, the anti spark connector, two battery testers and a maxi fuse. For BMS I use my brain. It works for me. Good luck man, don't have a brain fart, they are explosive! :shock: I've been using my pack for over 9 months ...
by Ecyclist
Feb 21 2019 12:26pm
Forum: E-Bike Non-hub Motor Drives
Topic: My Bafang Ultra Mountain Bike! Frey AM1000
Replies: 1154
Views: 111645

Re: My Bafang Ultra Mountain Bike! Frey AM1000

Now we have a distributor in Switzerland for AM1000. FREY, do you also sell Urban/City bikes? I cycle everyday in my suit to the office, hence, a mountainbike is not going to work :) Sure, it will work. In fact it will work better than anything else. Just install cheap plastic fenders and go. I jus...
by Ecyclist
Feb 20 2019 5:56pm
Forum: E-Bike Non-hub Motor Drives
Topic: My Bafang Ultra Mountain Bike! Frey AM1000
Replies: 1154
Views: 111645

Re: My Bafang Ultra Mountain Bike! Frey AM1000

Now we have a distributor in Switzerland for AM1000. Does anyone know if there are any E.U suppliers of Frey Bikes ? FREY, do you also sell Urban/City bikes? I cycle everyday in my suit to the office, hence, a mountainbike is not going to work :) Sure, it will work. In fact it will work better than...
by Ecyclist
Feb 14 2019 1:35pm
Forum: E-Bike Non-hub Motor Drives
Topic: New Motor for a Mid-Drive ?
Replies: 11
Views: 717

Re: New Motor for a Mid-Drive ?

What are your thoughts on this ? Could be the new go to motor for DIY Mid-Drives and Swing Arm mounted Mid-Drives . 8) https://hobbyking.com/en_us/turnigy-rotomax-50cc-size-brushless-outrunner-motor.html?countrycode=US&utm_source=criteo&utm_medium=cpc&utm_campaign=us&utm_term=LF I'm confident that ...
by Ecyclist
Feb 01 2019 6:58pm
Forum: E-Bike Non-hub Motor Drives
Topic: GNG X1-pro 3000w
Replies: 261
Views: 20597

Re: GNG X1-pro 3000w

Give yourself a favor and don't buy gear driven version of this drive. I'm not saying that chain drive is going to work well, but I'm saying that geared type will not for sure. You need very solid structure to use gear drive and you will never have that much rigidity on the bike. That's why everyon...
by Ecyclist
Feb 01 2019 11:53am
Forum: E-Bike Non-hub Motor Drives
Topic: GNG X1-pro 3000w
Replies: 261
Views: 20597

Re: GNG X1-pro 3000w

Give yourself a favor and don't buy gear driven version of this drive. I'm not saying that chain drive is going to work well, but I'm saying that geared type will not for sure. You need very solid structure to use gear drive and you will never have that much rigidity on the bike. That's why everyone...
by Ecyclist
Jan 06 2019 2:02pm
Forum: E-Bike General Discussion
Topic: AVIAN featherweight mid drive
Replies: 111
Views: 14264

Re: AVIAN featherweight mid drive

I read ya. More power = more fun. With 80 mm motor and VESC 6 that I have I will be running my kit at 2400 to 3000 W continues and 5000 W peak power. Most of that at the wheel thanks to my very efficient transmission. That trany runs so well I can turn it backwards by hand. Also, it runs lukewarm so...
by Ecyclist
Jan 04 2019 11:55am
Forum: E-Bike General Discussion
Topic: AVIAN featherweight mid drive
Replies: 111
Views: 14264

Re: AVIAN featherweight mid drive

The Alien 80 mm motor is still sitting on my test bench. I'm just to lazy to build a new kit and in the same time I'm very happy with my 63 mm motor. I also race sailboats and have hundreds of other excuses. :lol: I'll get to it eventually. My Alien 80 mm motor was $163 and shipping $28. So, total p...
by Ecyclist
Dec 24 2018 11:18am
Forum: E-Bike General Discussion
Topic: AVIAN featherweight mid drive
Replies: 111
Views: 14264

Re: AVIAN featherweight mid drive

10-32
by Ecyclist
Dec 21 2018 12:34pm
Forum: E-Bike General Discussion
Topic: AVIAN featherweight mid drive
Replies: 111
Views: 14264

Re: AVIAN featherweight mid drive

After more than 2000 miles I had my first failure. The twisting force of freewheel pulled heads of three screws that hold the backing plate.
Backing plate.JPG
Backing plate.JPG (121.99 KiB) Viewed 380 times
I increased screws to six and in the future build I will use 80% stronger screws.
New Backing plate.JPG
New Backing plate.JPG (142.76 KiB) Viewed 380 times
by Ecyclist
Dec 05 2018 6:23pm
Forum: E-Bike Non-hub Motor Drives
Topic: Bosch mid drive with vesc controller
Replies: 25
Views: 2524

Re: Bosch mid drive with vesc controller

Thank you for the post. I will definitely use that knowledge on my build. :bigthumb:
Couple of questions:
How is the torque sensor connected to power and is the signal from the sensor wired to the controller?
Is the torque sensor inside of the bottom bracket?
Thanks
by Ecyclist
Nov 23 2018 1:39am
Forum: E-Bike General Discussion
Topic: AVIAN featherweight mid drive
Replies: 111
Views: 14264

Re: AVIAN featherweight mid drive

Could you make a new thread just on this one Topic ? Temp Sensors from a Laptop Battery and how to make one work with your e-bike motor . With pictures and any important information. Many people with all type of e-bike motors can benefit from this . Thanks What you really need if you want to Squeez...
by Ecyclist
Nov 19 2018 8:19pm
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1578
Views: 176521

Re: 2 Speed Xiongda hubmotor

Q128h it's not a direct drive, it's a geared motor. I had one and it's very powerfull, the same as bpm. But when i try to use in hard off road i burn the motor quickly :-( on the road it' a good motor, plenty of power (48v 20a) and my wheight it's 104kg That's only 1000W. I would't call 3000W a ver...
by Ecyclist
Nov 07 2018 10:14am
Forum: E-Bike General Discussion
Topic: AVIAN featherweight mid drive
Replies: 111
Views: 14264

Re: AVIAN featherweight mid drive

Hi With vesc6 like controller you don’t need hall sensors With Skate board they need it in some cases but main benefit of vesc that it can work without halls and with your reduction vesc will speen motor more then enought to star with good power without sunc problems Now you add 8 weak points to yo...
by Ecyclist
Nov 04 2018 2:20am
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1578
Views: 176521

Re: 2 Speed Xiongda hubmotor

Unfortunately you will need to buy a battery and that will cost you pretty penny. For my first build I bought the battery from Luna and my plan was to buy a second, the same battery from them. (Carbon shark pack) They didn't have it in stock so I bought it directly from China. Exactly the same thing...
by Ecyclist
Nov 03 2018 11:06pm
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1578
Views: 176521

Re: 2 Speed Xiongda hubmotor

docw009 wrote:
Nov 03 2018 9:30am
The Q128H definitely freewheels and BMSbattery probably has no customer service, but I've been lucky and never needed it.
I was under impression that Q128H is direct a drive with planetary reduction motor and no clutch. Was I wrong?
by Ecyclist
Nov 03 2018 7:04pm
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1578
Views: 176521

Re: 2 Speed Xiongda hubmotor

Consider that both Xiongda and Luna provide a different level of service than BMSBattery. Very different. Service and parts on small gearmotors is eventually necessary unless you plan to discard it when it needs parts. Good point on parts. I emailed Luna because I need a 135mm hub. No dice, they on...
by Ecyclist
Nov 03 2018 12:59am
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1578
Views: 176521

Re: 2 Speed Xiongda hubmotor

@tomtom50
Q128H by BMSbattery = no freewheeling = no torque = no customer service = not a good choice.
But, hey it's your money.
My 2 cents.
by Ecyclist
Oct 30 2018 11:05am
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1578
Views: 176521

Re: 2 Speed Xiongda hubmotor

Alan is right, but I say just follow Xiongda recommendations and you will be OK. They sell millions of these kits in China and they know the best.
BTW: Bonnie is easy to work with and provides top customer service. :thumb:
by Ecyclist
Oct 30 2018 10:10am
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1578
Views: 176521

Re: 2 Speed Xiongda hubmotor

Forget about CA3. It will be PITA to use, it is not aesthetically pleasing and you will spend $130 extra. Order directly from Bonnie Xiongda <bonnie@xiongdamotor.com.cn> Buy everything that comes with the kit. Parts are cheap. You can get spokes from Xiongda as well. They are $8 extra. Go for 14G an...
by Ecyclist
Oct 29 2018 9:31pm
Forum: E-Bike General Discussion
Topic: 2 Speed Xiongda hubmotor
Replies: 1578
Views: 176521

Re: 2 Speed Xiongda hubmotor

Sorry for the dumb questions but it's a long thread and I couldn't find clear answers. Do I need a particular controller or display to switch gears? I.e., can I use this motor with a cycle analyst and a standard controller? If so, how do you control changing gear? Is it different between the OEM an...
by Ecyclist
Oct 28 2018 11:19am
Forum: Items for Sale - New
Topic: Kepler Bottom Bracket Friction Drive For Sale (Finally)
Replies: 317
Views: 36014

Re: Kepler Bottom Bracket Friction Drive For Sale (Finally)

Yes, 100% regen when both brakes are applied. I used Hall sensors as I wanted it to be completely water proof. I quickly discovered micro switches dont belong on a mountain bike and quickly fail under muddy and rough conditions. The button throttle and brake sensors are connected to a custom progra...
by Ecyclist
Oct 27 2018 5:38pm
Forum: E-Bike General Discussion
Topic: AVIAN featherweight mid drive
Replies: 111
Views: 14264

Re: AVIAN featherweight mid drive

Finally, I will be installing bigger 80 mm motor on my build. I tested two different motors with a new more powerful ESCape controller and now I'm in the process of installing hall sensors in these motors. I made 120 deg. mounting boards out of FR4 and I installed sensors in them. I followed the rec...
by Ecyclist
Oct 27 2018 12:11pm
Forum: Items for Sale - New
Topic: Kepler Bottom Bracket Friction Drive For Sale (Finally)
Replies: 317
Views: 36014

Re: Kepler Bottom Bracket Friction Drive For Sale (Finally)

Interesting idea. if you only needed a boost to low speed, you could us a low kv motor, so 60 kv and say a high C rated 4S Lipo battery. The motor would climb the tire under load, then drop off the tire once it reach full speed which would be quite low. The motor could easily be pulled on to the ti...