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

[Singulis]

Going to be riding my bike in all the weathers as well as going off road. Sidewalks also suck here.

Would an a lite trail with wider tires be good for the snow/ice/rain? or just studding them?

Also, how much clearance do tires need from the seat stay/fork?

[paxtana]

Sure a studded tire would do the trick, offroad tires might also work. Probably depends how much snow we're talking about but yes, wider tires are always better for snow. Not sure on the clearance, might want to ask the frame manufacturer.

[juniorgong]

I have a Luna Dolphin Battery cradle and I need to replace the wires that come out of the cradle. What gauge wire is appropriate and what connectors are needed to attach the wires (that run to the controller) to the other side of the two-pronged connector?

Thank you! I didn't know about your solder sleeves and will definitely order some. Can Luna solder sleeves be cut on one side and applied directly to the contacts on the rear of the mount's battery connector?

Also, do you know when you might have the dolphin battery cradle replacements available? I'd like a second one so I can transfer the battery across my multiple bikes.

[paxtana]

No those little cups in your pic are for actual soldering, the solder sorta sits in there for a good connection.

Not sure on the cradles at the moment, could be a while.

[juniorgong]

Gotcha, thanks again for your help!!!

[CC Rider]

I am waiting to buy my BBHSD for when the Dime WolfPack comes out (any word yet on a release date?). Because of where I ride I need a stealth e-bike. I don't really want a display, but do want control of PAS and basic battery readings. The Bafang DP E12 UART looks great, but only works with a BBS02. Do you know of anything on the market like this that works with the BBHSD?

[paxtana]

Not that I'm aware of.

We don't have info on unreleased products sorry.

[Tommm]

Yes there is a way to do exactly that. Use eggrider dongle. Your phone will be the display, where you can adjust settings. You can have a street legal profile at the tap of a finger too. You can use a high quality aluminum mount. I use this one. https://m.aliexpress.com/item/32833311785.html
IMHO it is a shame Luna doesn't use this product on their bikes, it's an elegant, stealthy and cheap solution. Only negative is that it doesn't support the bafang ultra (yet).

[Wolfstar1]

So I have a question regarding programming the BbsO2. Is it possible to program it to only kick in over a certain speed limit with pedal assist? For instance, I'd like to be able to get up to 15 miles an hour or so under my own power, and then have the motor kick in to help boost me up to about 20 to 25 miles an hour cruising speed for commuting to work. I would still be pedaling while the motor was doing its thing, as all I wanted this drive to do is be able to get me up to a cruising speed that cuts my commute time.

[Wolfstar1]

And I've already purchased this item from Luna cycle, so I'm just hoping to get some clarification on this?

[paxtana]

That is not possible, sorry.
However, please see this document for some basics of programming if you would like it to ease up on the assist.

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

[Tommm]

I have used many profiles, I ended up with the one that has 100% speed everywhere and put amps % that ramp up on a exponential scale(9 levels, so 0%(off) 1%(throttle only) 4%, 9% 15% 25% 45% 65% 100% you get the idea) as it is closest to human perception. Under 10% amps you can barely notice the motor helping, the control is very fine. Buy a programming dongle and you will be able to find/make a profile right for you, don't worry.

[Graydonivan]

I was swapping out controllers and didn't label the wires. I have a sabvoton. The red light comes on and the led on the throttle comes on showing the voltage but nothing happens when I pull the throttle. I also have an ebrake and when I engage the ebrake the controller doesn't recognize it(normally the sabvoton will blink 26 times). How do I fix this or find out what the problem is?

[paxtana]

Hello this thread is more meant for asking Luna questions regarding products purchased from us..your question might be more suited to a separate thread on the forum perhaps in the troubleshooting section. Anyway it is likely you need to match the halls sensor wiring.

[Andrey_msk]

One more question :)

I have a Norco Aurum 6.3 ( https://goo.gl/images/Pe6aBn ) as a donor so the frame is flat on the place where bbshd should be placed so I am worried about the clearance especially with 20 centimeters suspensions. Could you provide me exact dimensions of the round part (where the motor is placed).

And to compare, for the cyclone mini.

[paxtana]

Might want to check the technical extras section.

https://electricbike.com/forum/forum/knowledge-base/motors-and-kits/bbshd/10736-how-to-order-the-right-bbsxx-kit

I would not be surprised if the chainstay interferes with secondary reduction housing preventing it being fully flush against the BB shell given how this donor bike has the chainstay flare out so much. Probably want to measure this as well. If it's not too bad a spacer will do the trick, otherwise you may need to go up a size and use more spacers or an alternate mount bracket.

[Valmek]

Is this how the motor is suppose to be mounted. It seems VERY close to either pedal but one side has only a little more room. I did get the correct squared taper size. I even put spacers to put the chain wheel thing out some stretching how much it is screwed in and this as far as I can go. I read people bend the mounting brackets but I have little room to work with either side.

[paxtana]

Offset cranks are sometimes available if you prefer but yes that is generally what it would look like.

[quantumcloud509]

Is running two Luna 48v24ah batteries in series an option in order to achieve 96v status on my bike?, keeping in mind that each battery will be recharged separately after each trip to the same exact voltage, and discharged to the same voltage on the ride as they are running together. 24FET controller, and CA will be used to brain the operation for smooth sailing.

[commuter ebikes]

Is running two Luna 48v24ah batteries in series an option in order to achieve 96v status on my bike?, keeping in mind that each battery will be recharged separately after each trip to the same exact voltage, and discharged to the same voltage on the ride as they are running together. 24FET controller, and CA will be used to brain the operation for smooth sailing.

You have to be careful when you run two 48V batteries in series because the fully charged voltage may be higher than what the MOSFETs in your controller can handle. What kind of controller is it?

If it has 4110 MOSFETs, the fully charged voltage is definitely too high for the FETs. You would need 4115 MOSFETs.

[quantumcloud509]

You have to be careful when you run two 48V batteries in series because the fully charged voltage may be higher than what the MOSFETs in your controller can handle. What kind of controller is it?

If it has 4110 MOSFETs, the fully charged voltage is definitely too high for the FETs. You would need 4115 MOSFETs.

Thanks CE, from what I understand, 4115s in a 24F PowerVelocity 20kw. So, what Im asking to be more clear, and in order to be safe, is if I run two of the 48v24ah packs that Luna is selling on their site right now in series, understanding that its not parallel, but series, the voltage will double to 96v nominal, and the ah will stay the same, and I will ride with the two battery packs united into one and they will theoretically discharge at the same rate to the same specs, and after a ride they will be disconnected from each other and charged separately on a Satiator to 80%, and not connected together again until they are both charged to the same specs, and this sounds safe to a reasonable point right? Im trying to use high quality components here, and I want to be sure that operating under these operating, charging, and discharging parameters that things should be safe. The goal for this huge system is to juice it easy for a solid 100miles - maybe more, I want to see how far I can go on a charge man I WANT MORE. A personal test. Big, cool running low wind copper-mass, 95% PAS throttle ride at 12.5mph on a relaxed cargo bike, not a very loaded one at that. And then sometimes the occasional WOT, just to feel the wind in my beard.

[quantumcloud509]

ALl my questions have been answered by Luna helpers in pms thank you

[Kinni]

So Ive had the BBSHD kit for less than a month with only 45 miles on it and the pedals have stripped completely out of the cranks like they were made of wood or something. Is this warrantied or anything?

[HIGHVOLTAGE]

Unfortunately not. Bafang uses cheap cranks as a cost saving measure for the kit. Especially since they're easily replaceable with other brands. Most people just upgrade to Shimano Steps:

http://www.bike24.de/p1138455.html

Or go with the fancy Lekkie Buzz Bars (PS, I have these and they are awesome)

https://lunacycle.com/lekkie-self-extracting-offset-buzz-bars/

[Coolo118]

I want to use a 12 speed cassette for my BBSHD 52v 28ah build. It is called the SRAM XG-1275 Eagle™ all steel Cassette 10 - 50t. This cassette fits on my 135mm frame so I am thinking that the width of the cassette is going to be close enough to an 11 speed so it will not mess up my chainline too much in the lowest and highest gear.


I will be using this bike to go to and from work so reliability is key for me. Is there anything else I should know or consider before buying this cassette. Thanks!!

Would it make more sense to get a lower speed cassette and a 3 speed IGH hub?

Do you think the (49t cog made of 7075 aluminum) on a 10 speed 11 - 49t cassette would break with 48t chainring, bbshd, and 52v 28ah battery ?

I want such a wide range of gears because I want to pedal at a cadence of around 100 at 30mph but also want to climb hills with a 10 degree incline without damaging anything.

[paxtana]

11-12spd chains are fairly weak for that power so use a good one. 48t chainrings will give different cadence but also puts more stress on primary so that lowest gear on cassette might not be the best idea unless going downhill. Cassette sounds good if it is steel.

[Tommm]

48 is very big for a chainring. You will probably find yourself buying something smaller, very soon. Also, check your motor temp often with your hand while running that thing.

[Kinni]

Consider reworking your cassette for a greater range of gears.. you really don't need more than 5 gears with a motor. check this link:

https://electricbike.com/forum/forum/knowledge-base/motors-and-kits/bbshd/39170-how-to-rework-rear-sprockets-for-mid-drive-systems

Just for a little input: on my 29er, i get 30+ mph pedaling ~110-120 cadence in 36t-11t .. I climb 20+ degree hills with ease in my 3rd gear (22t) on my BBSHD 52v @70+ cadence. Darn little thing has some massive torque,

[Coolo118]

Thank you for helping me build my first ebike. : )

[thebootfitter]

What does Luna use for “potting” the batteries, such as the new Wolf pack?

[paxtana]

Potting compound..