Ask an ebike technical question get an answer within 30 minutes or so.

[nemesis]

PAS only don`t have throttle,both controllers are programmed with your black box and they are both original controllers set to 30A.Yes both tested with the same battery level.No speed limits are set.

[HIGHVOLTAGE]

Do you have the throttle that came with it? I would plug it in to help rule out the PAS as suspect.

[duanebaker]

I have a Bafang motor that was running fine and then just seized up. The pedals will not crank at all. The bike only has 1,400 miles on it. The only numbers that I can pull of the motor are CR R209 750. I can not find anything on your website about this part number. I need to know what I need to do to get this motor running again whether it is a core motor replacement or something different. Please help. Thanks

[HIGHVOLTAGE]

Start by cracking it open and seeing which part is specifically seized. It could be just the clutch or it could be the main gear or even the Nylon Gear. All of which are easily replaceable.

https://electricbike.com/forum/forum/knowledge-base/motors-and-kits/bbshd/36670-bbshd-teardown-maintenance-and-greasing

[nemesis]

No don`t have a throttle,never used one.

[HIGHVOLTAGE]

Check if the PAS options are also set to the proper % in the programming settings then. Maybe pick up a throttle and see if you get the full 1500watts in PAS 0? That can help rule out if it's just an issue with PAS settings or if the whole controller is having issues.

[nemesis]

Will try to get a throttle and try it ,yes all percentage levels are the same on both controllers.Why is the battery icon on the screen showing depletion at a high battery voltage with the Luna controller,that has never happened on any other bike i have built as they always show full until nearly empty,it isn`t the screen that is faulty because both screens do it with the Luna controller.

[HIGHVOLTAGE]

Well one thing should be noted here. The display does not accurately show battery level through the % gauge. None of the displays have ever done this properly or reliably. You should be switching it to voltage in the settings of the display and then using the voltage number to read both batteries to make sure they are equal. There's a voltage chart at this link here:

https://electricbike.com/forum/forum/knowledge-base/batteries-aa/12542-luna-hardcase-battery-documentation

[nemesis]

Yes i do use voltage not percentage,as an example the voltage will show 56v stationary after a short ride and the green battery icon at the side of it will show slight depletion,this has only ever happened with the Luna bought controller never on any other bike and i have built four BBSHD bikes in the last four years.

[HIGHVOLTAGE]

The green battery icon is not accurate with 52v batteries which is what I'm trying to say. It was designed for 48v in mind which is why your previous builds may have been different (assuming they were 48v) You can just ignore it and not factor it into anything. Just focus on the 56v which his about 80% battery or so roughly using this chart here:

https://electricbike.com/forum/filedata/fetch?id=46252&d=1521089057

[nemesis]

Why does the battery icon not show full until the battery is nearly empty,only the Luna controller has done this.All the builds have been 52v.

[HIGHVOLTAGE]

I don't know where your builds were bought from or what displays you used. As far as I know, it's always been like this.

[rschoi_75]

When do you guys plan to have more white wolf 680+ frames (med specifically) in stock?

[paxtana]

We can notify you once we get some if you want

[Bergy67]

First time ebike builder. I want to make sure I get the right size Bafang HD kit. My bike is a 2008 Rocky Mountain Trailhead. I have the bb already removed. It is 73 mm wide. I believe I should get the 68-73 kit but have read you should go to the next size up? I have included pics.

Thanks.

[HIGHVOLTAGE]

It usually depends how wide the chainstay is and whether the motor interferes with it. It's hard to tell through pictures so you may have to order the 68mm-73mm and then see if it fits without interference, if not, then just return it and go for a size up.

[rschoi_75]

Thanks for the reply. Ok, so any hints on when you'll be dropping the next 26x3(ish) hard tail? While I'd love to buy the Apollo, it's out of my price range at the moment.

[HIGHVOLTAGE]

No hints to give out right now. Sorry :(

[nemesis]

Could the problem be the motor core ?, or would a bad or poor connection between the battery and the controller be the problem,would these cause the loss of power i am having.

[HIGHVOLTAGE]

You can check for that stuff physically but without ruling out the throttle only mode, it's practically impossible to say. I mean you did say it only happened when you switched controllers which should rule out everything else but a programming error.

Maybe email support@lunacycle.com with a video showing us how you're using the BlackBox to program it just so we can verify it's all being used and saved correctly. Sometimes these programs are a bit finicky and you may have to hit the save button more than once.

Also cannot rule out the possibility of the BlackBox not saving/reading the settings correctly. So maybe pick up a programming cable and do it the manual way? We have a guide for this here:

https://electricbike.com/forum/forum/builds/custom-ebike-motor-programming/bbshd-programming/43287-basics-of-programming-bbs02-and-bbshd-mid-drives

And also, just to be 100% sure, this is not a Ludicrous controller from the Black Friday sale, correct? Just a regular BBSHD controller? Cause if it's Ludicrous, that would be the reason it's happening because you're outputting double the wattage despite what the display says which is just normal behavior.

[nemesis]

No i don`t think it is ludicrous i just ordered a normal one,I will try to get hold of a throttle and try that and will send a vid with how i use the black box.

[nemesis]

Tried a throttle and the max watts is 950 to 1050 fluctuating,the programming is set to max and 30A.That is with a full 52v battery.

[paxtana]

It's not going to pull peak unless you are either lugging it or going uphill, and even then most of the time you will only see it for a short while, such as when accelerating from a dead stop. Check where and how you are testing it

[fambo1]

i have recently purchased a m2s with the ultra wondering about tuning the torque sensor does that work ? how is it done?

[paxtana]

That is outside the scope of this thread and far as I know not possible.

[Gjv13]

The Luna banana what's the head tube diameter what bottom bracket does it except. And hub withs front and rear

[paxtana]

No idea but the base frame is a coast cycles buzzraw if you want to ask them

[Rajesh]

I have dpc18 display and bbshd motor. I just completed the build. In my test ride, the bike was riding fine but once it picks speed im getting error 21. Speed sensor error. In my view sensor and magnet is aligned

[HIGHVOLTAGE]

Grab the magnet and manually swipe it against the + sign and see if you can get the error code to go away. Then you'll know if it is an alignment issue.

[Rajesh]

Thank you. It's not always on I will try and post back