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[Al30280]

Hello
2 questions.
I have a Luna banana ludicrous and the display/battery randomly shuts while riding. I have 2 batteries and I’m almost positive it only happens with one of the batteries.
Also my speed sensor stopped working. How do I go about repairing that.
Thanks
-Al

[bhaaf]

The motors will shut off after about five minutes if it doesn’t see the speed sensor “magnet”. Turn it off then back on and you have another five minutes.

[paxtana]

^^ this. Also, depending on the display you can turn off this functionality. All color displays can do it, it's a setting called auto-off or something similar.

[73Eldo]

Both Wolf batteries? Same age and vintage? Any indication of their charge state when this happens? Like 100% or maybe 75%? Are you reading volts or percent? What sort of demand are you putting on the motor at the time it cuts out? Or doesn't there seem to be any pattern?

Speed sensor I would assume is the stock Bafang BBS setup where you should be able to see a wired sensor on the back wheel. It senses a magnet that is attached to a spoke. Its got to be pretty well aligned and close to the sensor to get a good reading like within 2mm. First check to make sure your rear wheel hasn't shifted for some reason, if its in its proper place and secure look and see how close the magnet gets to the sensor. The magnet can fairly easily get knocked or as the wheel settles in the spokes can twist a bit. Also if they are using the stock sensor mount its kinda a flimsy piece of crap. If you have or know someone with a 3d printer there are much better ones on thingaverse. Sensor has a light on it that goes on and off as the magnet passes.

[Al30280]

Both are wolf pack, one is the stock black one (this is the one shutting down) the other is the clear one U can see the cells. Recently bought that one.
it shuts down anywhere from half power to almost no power. I only ran it down once, usually charge with one green bar left. As far as load after a constant low to medium load is when it shuts down. Definitely not pushing hard when it happens.

I just noticed the magnet fell off the wheel. It was not under the tape.
Where would I grab another magnet from?

[73Eldo]

For the magnet its nothing special. Just go to your favorite bike parts website and search for speed sensor or magnet or similar things and you should get some hits. Many other types of speedometer/cycle computers use a similar setup that will work. Some places have a Bosch one. CatEye is seems common but looks like the clamp is plastic. I have been buying MSW ones. They seem like strong magnets on an aluminum body. EC331 looks to be the part number. You can also get it as a Bafang part but only with a sensor and its pretty rarely in stock anywhere.

On the battery you may have a problem. It seems like Luna could have had a bad batch a while back where the BMS freaks out and cuts off way too soon. Look up your original order number when you bought the bike and the serial number thing on the pack itself if the sticker isn't all scratched off then open a ticket on their site. If it falls into the batch they have had issues with they will likely have you go through a specific sequence of testing that you document on video. If they determine that its a defect and not just age or missuse they will likely offer you some sort of credit to be used towards a new pack. They don't just send out a new pack no questions asked especially after the original warranty has passed but I thought their offer was fair and got another Wolf and would not hesitate to buy more which I have.

[Bike Jim]

I purchased a Luna Apollo a couple of weeks ago. I love the bike but I managed to bend the derailleur hanger. I want to purchase a new derailer hanger and I would like to know which one is installed on the Apollo and where I can purchase one? Also which size of Sram Eagle SX derailleur is the Apollo equipted with?

[paxtana]

Sorry to hear that. Like many high-end hangers you can bend it back several times before it needs to be replaced, typical bike shops have tools to straighten them. But if you want to buy a new one we can likely hook you up as a special order if you contact support. I doubt you would be able to find it elsewhere.

[Bike Jim]

Thanks! I'll do that.

[Nostroke]

I have a BBSHD recent version from BafUSA Direct. I want to add on my own self powered two wire digital voltmeter, mainly because I like the stock display and controls and don't want to upgade them. Is there a place where I can tap into the existing harness and get a switched B+ voltage sense? My meter would slowly drain the battery if left connected, so the P+ as shown in the Luna schematic won't work as its always hot, if I understand it. I could add a push button to momentarily power the meter but prefer to have it on when I'm riding.

[paxtana]

Sorry friend this thread is for specifically asking about Luna products, if you bought this from some other dealer you would have to create a different thread asking for advice there

[Bmp1981]

Hi,
I'm having issues with my Bafang bbs02. I have a kt 36v controller and a lcd3 display
Ok so here is my issue - when the assist starts the motor very often stutters and won't take off like there is not enough power even on the flat... if it does take off it goes ok except motor sounds a bit louder than usual but if i
stop pedaling the assist stop (as expected) but does not start back. The throttle is not working either. I have to either power off and on the Battery or if I ride over a bump or off a gutter will kick it back in.... I have tried resetting to defaults and many variations of the display settings and nothing has worked.... Any advice would b much appreciated
Tags: None

[paxtana]

If you are having an issue with an aftermarket controller you would likely need to get in touch with the seller and see if they support it.

[indypup]

Luna Wolf V2 52v Battery Pack
Options Available: Stealth Black - Samsung 30q 12ah

Battery just turns off when it gets down to about 53V. I should have complained about this a long time ago as it has done it since day one. I thought that was the BMS working but someone told me it's bad and not supposed to do that. I checked the voltages on the ports after it turns off and of course the discharge ones are 0 and the charge ports are at 7.5V each. It will charge back up to 58.8 volts just fine btw and I just happened to see the voltage of where it was today when it died and it was not fully discharged. It seems to be cutting out at 50% discharge. :(

I'm guessing a bad BMS but this thing it totally sealed up in epoxy. :(

[73Eldo]

Ya the fully potted battery is in theory good for longevity as long as there isn't a defect. The BMS looks like its the first thing that goes into the plastic case so for sure a fairly destructive process to access it which would also be risky especially on the black ones. At least if you had the clear one you could see where stuff was but even then it would still be quite a slow and possibly risky process.

May still be worth starting a ticket with Luna. First look up your original order number and then the serial number off the bottom of the pack if the sticker isn't scratched off, the ticket process will ask for the original order number. Depending on the age and batch they may ask you to do some specific tests and document them on video. If they determine that it is a defect they may offer you some credit towards a new pack. They do this on a case by case basis so there is no real firm time line or percentage but something is better than nothing which is more or less what you have now.

I still think its a good design pack and used my credit for my bum pack towards another one and have also bought yet another one after that. I like that its about the most vibration and moisture resistant pack out there. That is all I will run on my off road bike because I worry about the extreme vibration on the trails with other packs.

[Groovy2]

need repair parts for RST Killah forks - o rings for dampener piston - or replacement cartage - Thanks

[paxtana]

I am not aware of where you would get those, but your best bet to find out would be the usa dealer for rst, risse racing

https://risseracing.com/

[Johnny Rocket]

BBS02 speed sensor error 21. On power up the sensor red led is off, once the magnet passes by the first time the led light stays on and I eventually get the dreaded error 21. I've tried unplugging the sensor and re-plugging back in. Does this seem like it needs a new speed sensor? Kit is only 1 month old, clean road use only

[paxtana]

First check if it is installed correctly https://electricbike.com/forum/forum...x-speed-sensor

[nikolo00487]

Hi,
I am Interested to get a mountain bike. I found ( removed) a bike model. which Is meet my Interested "Mongoose" but still confuse. this one worth It or not.

Do you have specific guide about mountain bike?

Thank you
Best Regards
Nikolo

[paxtana]

Many of the links on that page are not suitable, since it has a shock going through the triangle which would prevent mounting a battery there. Also the page is very misleading as most of those links are nowhere near the price they are stating, if they are available at all. It is just spam used to generate affiliate revenue. If you want a good bike model check out the list and build gallery

https://electricbike.com/forum/forum/builds/ebike-building-directions

https://electricbike.com/forum/forum/builds/customer-gallery

[John Blauw]

I have a bafang kit bbs02b with a c18 version 3.0 display and it doesn't have the option to change the pas lvl. Any idea's?

[paxtana]

Bafang removed DPC18 capability to change to 9 levels of pas a year or two ago

[73Eldo]

I got caught on that too, maybe you could get that note added to the details on the web store? If we ever get to the point of having options in stock that detail may help someone decide between models.

[paxtana]

It says it has 5 levels on the listing description, also the linked documentation was amended to reflect it is 5

[John Blauw]

Thanks Paxtana. At least now i know there is no point in trying to program it for 9 pas levels.

[Boris192]

So my bbshd started making more noise than usual after about 4000 miles and since the warranty had already expired I decided to go ahead and open it up for some quick TLC. All went well until I got to the part where you remove the nylon gear. After removing the snap ring the gear would not budge at all. I've tried using pliers with two Allen keys under the gear with no success. My conclusion is that during assembly not enough grease was added to the inside of the gear which caused it to corrode and seize. Any suggestionS on how to remove it without tearing apart the other parts around it? I have it sitting in some pb blaster which is slowly eating at the nylon at the moment, but some quicker method suggestions would be appreciated.

[Boris192]

Nm. Pb blaster worked! Time for new gear now.