Search found 216 matches

by speedyebikenoob
Aug 11 2020 11:00pm
Forum: Motor Technology
Topic: Replacement motor controller help
Replies: 0
Views: 12

Replacement motor controller help

So my motor controller has been acting up and I have a feeling it's not going to be fixable. I have a cyclone middrive on my bike and was using the 60 volt 40 amp controller that came with it. I looked on luna cycle's website and they normally sell for $50, but they are out of stock. Does anyone kno...
by speedyebikenoob
Aug 11 2020 12:14pm
Forum: E-Bike General Discussion
Topic: Do I really need a switch for the battery if I have a controller switch?
Replies: 20
Views: 507

Re: Do I really need a switch for the battery if I have a controller switch?

fechter wrote:
Aug 10 2020 11:36pm
If you plan to park it for a long time, you could unplug the CA.
In that case I would just disconnect the battery
by speedyebikenoob
Aug 10 2020 10:05pm
Forum: Motor Technology
Topic: E bike motor controller limiting amps
Replies: 1
Views: 39

E bike motor controller limiting amps

Hi guys, I'm so close to finishing my e bike build so I was super bummed when I tried to ride it today and it felt gutless. My motor controller is a cheap standard 60 volt 40 amp 12 fet motor controller that I shunt modded for 55 amps. I did the shunt mod two weeks ago and have put probably around 7...
by speedyebikenoob
Aug 10 2020 9:34pm
Forum: E-Bike General Discussion
Topic: Do I really need a switch for the battery if I have a controller switch?
Replies: 20
Views: 507

Re: Do I really need a switch for the battery if I have a controller switch?

Alright so I experimented a little myself. I let the bike sit for a few days with only the Cycle analyst on and surprisingly for me it seems to draw very little power. There was I think a 0.1v drop over two days. I don't see that being a problem, so I'm probably just not going to add a switch at all...
by speedyebikenoob
Aug 09 2020 2:50pm
Forum: Battery Technology
Topic: Drawing slightly over rated e bike battery amps
Replies: 6
Views: 124

Re: Drawing slightly over rated e bike battery amps

Thanks guys, I guess I'll leave it how it is then. I can turn it down because I have a cycle analyst but I'm not sure I want to give up the extra power. :) The 55 amps is rare and I really have to make an effort to get it there for even a few seconds.
by speedyebikenoob
Aug 06 2020 10:35pm
Forum: E-Bike General Discussion
Topic: Cycle analyst readings off?
Replies: 0
Views: 38

Cycle analyst readings off?

Does anyone else have this issue where cycle analyst seems to alter the current measurements when the throttle is passed thru it? When the throttle is connected directly to the controller, it caps at 55 amps. When the throttle is passed thru the CA, it caps at 51 amps. I've noticed this with several...
by speedyebikenoob
Aug 06 2020 10:29pm
Forum: Battery Technology
Topic: Drawing slightly over rated e bike battery amps
Replies: 6
Views: 124

Drawing slightly over rated e bike battery amps

My battery is rated to output 50 amps continuous, but my controller seems to be drawing 55. I've always assumed since the battery has a BMS it'll protect itself before the controller damages it. Should I turn down the current or as long as the battery isn't getting too hot and is allowing it will it...
by speedyebikenoob
Aug 02 2020 10:10pm
Forum: E-Bike General Discussion
Topic: Do I really need a switch for the battery if I have a controller switch?
Replies: 20
Views: 507

Re: Do I really need a switch for the battery if I have a controller switch?

fechter wrote:
Aug 02 2020 9:46pm
I have several bikes that don't have a switch on the battery and I don't unplug it (unless doing service). No issues with it draining while off.
Do you have a cycle analyst on any of them?
by speedyebikenoob
Aug 01 2020 11:28pm
Forum: E-Bike Non-hub Motor Drives
Topic: Ok to shift middrive under low power?
Replies: 1
Views: 281

Ok to shift middrive under low power?

I used to shift my middrive e bike by letting off the throttle completely, but that made shifting pretty slow. I've been trying recently shifting without letting off the throttle completely to quicken things up. I just reduce my throttle output to 15-20% and shift. Is it really that terrible for the...
by speedyebikenoob
Aug 01 2020 11:12pm
Forum: E-Bike General Discussion
Topic: Do I really need a switch for the battery if I have a controller switch?
Replies: 20
Views: 507

Re: Do I really need a switch for the battery if I have a controller switch?

donn wrote:
Aug 01 2020 9:43pm
I left my Cycle Analyst on, and my battery came up drain-o.
So it drained it pretty quick then?
by speedyebikenoob
Aug 01 2020 11:11pm
Forum: E-Bike General Discussion
Topic: Do I really need a switch for the battery if I have a controller switch?
Replies: 20
Views: 507

Re: Do I really need a switch for the battery if I have a controller switch?

Cycle Analyst will run your battery down. But it's drawing power from the controller, isn't it? So you hook up a power switch to the controller, and then you can turn everything off. Maybe I'm missing something. Actually no, my controller doesn't have a cycle analyst output plug so I had to use the...
by speedyebikenoob
Aug 01 2020 3:07pm
Forum: E-Bike General Discussion
Topic: Do I really need a switch for the battery if I have a controller switch?
Replies: 20
Views: 507

Do I really need a switch for the battery if I have a controller switch?

My battery doesn't have a built in switch, but my controller has one. If my controller has one, is there really any need to get one for my battery? Is it bad for the battery? With the controller off the only thing it would be powering is the cycle analyst, which I'm assuming consumes very little pow...
by speedyebikenoob
Aug 01 2020 2:12pm
Forum: E-Bike Technical
Topic: getting rid of the magura throttle dead zone?
Replies: 1
Views: 80

getting rid of the magura throttle dead zone?

So I'm using a magura throttle on my e bike, and there's about a ten percent dead zone before the motor kicks in. I have the throttle wired up to a cycle analyst, and I've tried adjusting the input voltage to get rid of it. The problem is the magura throttle doesn't seem to output anything till I tu...
by speedyebikenoob
Aug 01 2020 2:01pm
Forum: E-Bike General Discussion
Topic: 40 amp luna cycle controller specs? Shunt mod?
Replies: 9
Views: 165

Re: 40 amp luna cycle controller specs? Shunt mod?

Okay so I did the shunt mod yesterday and I think it was successful! After two tries I got it to peak at exactly 50 amps up a steep hill according to the cycle analyst. I just decided to add a little bit of solder to the shunts. The motor controller doesn't seem to heat up much more than it did befo...
by speedyebikenoob
Jul 31 2020 2:21pm
Forum: E-Bike Non-hub Motor Drives
Topic: The 3000w Cyclone motor kits
Replies: 19
Views: 2390

Re: The 3000w Cyclone motor kits

Sorry I know this is such an old thread, did you ever figure out your issue with the cycle analyst? I'm having a similar issue where I have no limits turned on but for some reason it's limiting my power.
by speedyebikenoob
Jul 31 2020 2:19pm
Forum: E-Bike General Discussion
Topic: 40 amp luna cycle controller specs? Shunt mod?
Replies: 9
Views: 165

40 amp luna cycle controller specs? Shunt mod?

Hi guys, I have a cyclone middrive kit from Luna Cycle which came with their 40 amp motor controller. Does anyone have experience with shunt modding these? How much power can they safely handle? Anyone know how many fets do they contain? Edit: Opened it up, contains 12 fets. I'm hoping to bump it up...
by speedyebikenoob
Jul 29 2020 8:05pm
Forum: E-Bike Technical
Topic: Phase line meter? RPM?
Replies: 3
Views: 209

Re: Phase line meter? RPM?

an Arduino will receive the input and drive a stepper motor so it'll work like a tachometer in a car. My e bike is a middrive so I thought it would be cool. I've already done an analog speedometer for it the same way so I wanted to do the same for the tachometer.
by speedyebikenoob
Jul 29 2020 12:55pm
Forum: E-Bike Technical
Topic: Phase line meter? RPM?
Replies: 3
Views: 209

Re: Phase line meter? RPM?

bump
by speedyebikenoob
Jul 28 2020 3:07pm
Forum: E-Bike Technical
Topic: Phase line meter? RPM?
Replies: 3
Views: 209

Phase line meter? RPM?

I've been trying to figure out a way to measure the rpm of my middrive cyclone motor. I noticed my motor controller has a wire labelled phase line meter coming off of it. Can anyone explain to me what this does? Could I use it to measure motor rpm? If so how would I go about doing that? It's a stand...
by speedyebikenoob
Jul 23 2020 9:07pm
Forum: E-Bike Technical
Topic: Can I make my bike use only the odd gears?
Replies: 4
Views: 185

Re: Can I make my bike use only the odd gears?

Will the derailleur be able to accommodate the jump in size between the gears since they aren't as close in diameter anymore? Sorry I don't know much about these bikes.
by speedyebikenoob
Jul 23 2020 12:46pm
Forum: E-Bike Technical
Topic: Can I make my bike use only the odd gears?
Replies: 4
Views: 185

Can I make my bike use only the odd gears?

My e bike is a middrive and it's a standard 8 speed. Honestly 8 gears is a bit much, I was just wondering if there's anything I could adjust to make it shift two gears at a time when I press the upshift button. Is there anyway I can make it just use gears 1, 3, 5, 7? I'm aware I can just click twice...
by speedyebikenoob
Jun 29 2020 1:11pm
Forum: E-Bike General Discussion
Topic: Cheap 3 kw hub motors?
Replies: 29
Views: 883

Re: Cheap 3 kw hub motors?

Okay so from what most of you guys are saying, pretty much any motor can handle a lot of power for a few seconds, but I should focus more on getting the power down without losing control?
by speedyebikenoob
Jun 29 2020 1:09pm
Forum: E-Bike General Discussion
Topic: Cheap 3 kw hub motors?
Replies: 29
Views: 883

Re: Cheap 3 kw hub motors?

You're talking about a drag bike, 0 to 20, and it only has to make one run or just a few runs to win the money, right? Buy the cheapest geared used hub motor you can find, get the most voltage you can afford even if it's lead acid batteries, and wire it up w/ an on-off switch and a kill button, no ...
by speedyebikenoob
Jun 15 2020 1:30pm
Forum: E-Bike General Discussion
Topic: Cheap 3 kw hub motors?
Replies: 29
Views: 883

Re: Cheap 3 kw hub motors?

At $250 you will be shit out of luck for a fast hub motor. You need an overall budget of at least $1500 and then you can build something pretty decent (but with limited battery capacity). If acceleration is important you will want a lengthened wheelbase because any halfway-decent hub motor is wheel...