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    Originally posted by blueclaws View Post
    Bummer. Thanks for the quick reply.

    I wonder if I am overly concerned about foot/shoelace safety. When I am in throttle mode with my BBSHD (i.e. no pedaling), I see the chainring under me spinning at a very fast speed, very close to my shoes/laces which are stationary on the pedals. I get nervous about a high speed chain / high torque motor / gear teeth accident happening when I move my right foot into the wrong position. In contrast with pedal assist mode or a regular bicycle, feet and chainring/chain are moving at same speed and less chance of an accident happening. Or if an accident happens, you're quickly alerted to it and stop pedaling before it gets worse.

    Thanks, -Peter
    I would think as long as you keep your laces short and tight that they'll be fine. Even if they did get caught I don't think it would be much of an issue though regarding you getting hurt or anything, because I've had similar things happen to me in the past, and even though shoe strings seem really strong when you test them with your hands, they actually break pretty easy in situations like that. Now certain boot laces might be a different story, as some of them are pretty strong.

    I've been pretty lucky myself though without a guard. I've never had my laces or my loose pant legs get caught in the chain/chainring. I would suggest running a guard though. I"m a fabricator and plan on making a custom one myself, with a diameter significantly larger than the chain ring.... But when it comes to my own personal stuff I have a habit of procrastinating, so we'll see how long it takes me to get around to it, lol.

    Comment


      I purchased a BBSHD Motor Kit with the Hot Rod Program. After having problems with the Controller, I ordered from you, and have have received a 1000watt replacement Controller. Is this Controller a direct replacement or will I have to reprogram it to the Hot Rod specifications? Are these numbers available to me or will you [Luna] need to reprogram the Controller at your shop?

      Comment


      • paxtana
        paxtana commented
        Editing a comment
        If the original motor was from Luna and built in the last few years then yes it would be a direct replacement, assuming the controller you bought was version B. But if you want to reprogram it, just get a program cable. Our configurations are already preloaded in the software we make available.

      • SilverFox
        SilverFox commented
        Editing a comment
        You are correct in all cases, purchased from Luna, and it is the Version B. Not necessary to reprogram...your specs are exactly what is needed and it produces great results when used on our tandem. Thanks for confirming.

      Problem:bafang BBSHD with 52v shark pack dies suddenly at about 1/2 charge (indicated on bafang bar display) .
      I have several of these, have never had this problem: after about a year and maybe 100 cycles, the battery pack suddenly pulls a full shutdown (screen blank) with about 1/2 charge, no warning at all! Dead!
      So I got another BMS and replaced it by opening up the battery. It made NO difference, still does the exact same thing.
      I have older batteries that give warning, gradual cut-out around 1/4 charge but I always get home, never fully shuts down, display is always still on.

      What is this !

      Comment


      • paxtana
        paxtana commented
        Editing a comment
        Get a multimeter or put your display on voltage reading, those bar gauges are notoriously inaccurate. Once you do either of these things, get the voltage reading. Would like to see what voltage it is at resting, and what voltage it pulls down to under load. It is winter; and worth keeping in mind that during winter rides, you will see significantly more voltage sag under load, which is common for all lithium batteries when exposed to freezing temps. This sag is exacerbated by age, cycles, and how the battery has been treated over its lifetime.

      • kerrylaw
        kerrylaw commented
        Editing a comment
        Absolutlely. Meter the voltage from start to finish.. What is it at when fully charged? Write it down. Ride bike and monitor the voltage every 5-10 mins. Write it down. Keep doing this till you issue happens. Keep good records.. This will help diagnose the issue. Also, it is possible you have a bad cell or 2. All this data will help us. Else we are only guessing.

      Is there a chain ring option for the BBSHD that has a deeper inside offset than the stock chain ring? Even though I don't have a fat bike, I bought the 100mm HD because I plan on building a fat bike at some point in the near future, and want to be able to use this motor for that build when the time comes. For now, to deal with the chain alignment issue, I just have the motor offset to one side of the bike. If I can find a chain ring with more of an inside offset, I would be able to center the motor.

      It's funny though, because you'd think it would feel awkward having the motor offset to one side like that (and the pedals by consequence) but it doesn't at all. I really don't even notice it. It feels perfectly normal. The only thing I don't like about it is the increased torque on the bottom bracket from having the crank and pedal out so far away from it.

      Anyway, again, does anyone make a chain ring with a deeper inside offset than the stock one?

      Thanks

      Comment


      • ncmired
        ncmired commented
        Editing a comment
        Yes, for the BBSHD, the Luna Eclipse 2-piece 42/46 or the Lekkie 40.

      Originally posted by Steve-- View Post
      Is there a chain ring option for the BBSHD that has a deeper inside offset than the stock chain ring? Even though I don't have a fat bike, I bought the 100mm HD because I plan on building a fat bike at some point in the near future, and want to be able to use this motor for that build when the time comes. For now, to deal with the chain alignment issue, I just have the motor offset to one side of the bike. If I can find a chain ring with more of an inside offset, I would be able to center the motor.

      It's funny though, because you'd think it would feel awkward having the motor offset to one side like that (and the pedals by consequence) but it doesn't at all. I really don't even notice it. It feels perfectly normal. The only thing I don't like about it is the increased torque on the bottom bracket from having the crank and pedal out so far away from it.

      Anyway, again, does anyone make a chain ring with a deeper inside offset than the stock one?

      Thanks
      Just to be clear, the stock chain ring that came with my BBSHD already has about a 3/4 inch offset to the inside. You're saying that the two examples you gave have even more of an inside offset than that?

      Comment


      • paxtana
        paxtana commented
        Editing a comment
        Correct.
        Because of the presence of the motor taking up space, the point where a chainring would mount onto the motor is pushed out to the right from where a chainring would normally be. Offset is defined as how much distance you are able to bring the sprocket closer towards the frame. This results in a better chainline, less likelihood


        Stock is 19, lekkie is 20.4, eclipse is 24.8mm

      • 73Eldo
        73Eldo commented
        Editing a comment
        A gear on a cassette is 4-5mm so that extra almost 6mm is just over a gears worth of spacing. If your having issues with your lowest gear but 2nd is Ok then it would be worth it. The Eclipse basically puts the chain against the side of the controller. I did find out you can still get a chain jammed in there but its hard to get out. Make sure you have the clearance by the chain stay for more offset. Pretty easy when you have the stock one because you can just look at the gap.

      paxtana Why is your post unquotable? Is that by design, or some glitch?

      Comment


        Depends if it's a comment or a top level post. Comments don't have an icon to be automatically quoted, though I suppose if one were so inclined you could use the quote icon when leaving a top level post and insert the comment in that way. The icon will wrap it in quote tags.

        Comment


          I have Luna cranks and have to use a crank tool to pull it. Apparenetly my standard Park Tool CWP-7 will not work with the smaller diameter bolt in the Luna cranks. What do you recommend? Thanks!

          Comment


          • paxtana
            paxtana commented
            Editing a comment
            Sounds like it might be stripped. Here is how it works https://youtu.be/mxAj-zbynPI
            Maybe you could tap it off with a mallet or something but I am guessing it needs replaced if it no longer extracts itself.

          • CC Rider
            CC Rider commented
            Editing a comment
            Well the red retaining ring fell off months ago (I asked if you had ant replacements and the answer was no), so the video link explains why it isn't self extracting. I guess I can use the ring from the other crank to make it self extracting? Unless you have replacement retaining rings in stock?

          • paxtana
            paxtana commented
            Editing a comment
            No parts I am aware of, but sounds like the right approach to me. I could be wrong though. Of course if it is actually stripped then all bets are off

          I have a 48v Luna charger that is not putting out the correct voltage. it says its at 37.1v when the battery is plugged in and 000 for the amps.. the LED doesnt change to red showing its under load. when unplugged from the battery it will say 51.1v.. any help will be appreciated

          Comment


          • paxtana
            paxtana commented
            Editing a comment
            Sounds like it will need to be replaced.

          Hi,
          Suggestions for troubleshooting intermittent voltage drops? Once every 10 or 20 miles, over several weeks, electric assist and throttle will cut out. Indicated voltage is in 33-38V. After either a few minutes, or some wiggling wires, voltage will come back to 50 - 52V and everything is fine again. It seems to happen at random times (early in ride, or late in ride), not related to load or bumpiness.

          Where would you start looking for problems? In the external wiring/connectors? Or inside the battery pack?

          BBSHD, DPC14, 52V 17Ah shark/dolphin pack.

          thanks,
          John

          Comment


          • paxtana
            paxtana commented
            Editing a comment
            That is where I would start as well.

            This page has some pictures and video that may be of some use.

            <td style="background-color:MediumSeaGreen"> Luna Hardcase Battery Documentation ESSENTIAL READING FOR NEW EBIKERS: Charging brand new batteries (https://electricbike.com/forum/forum/knowledge-base/batteries-aa/20988-charging-brand-new-batteries) Beginners guide to using your

          • 2speedBBS02
            2speedBBS02 commented
            Editing a comment
            46 volts is bottom end of 52 volt battery. Chemistry will bring back batteries after cooling and time. The looseness of wires external to battery output seems would not change battery potential. Underload a battery will read lower voltage and at rest the voltage increases. By the way 50 volts is less than half charged. 58 volts is top end or so. Resistance in system? Even a short. Is battery hot? If all looks well the I suppose the controller is suspect. The comments below seem to suggest a short. There should be some sign of heat. However I am no electric wizard. A simple voltage meter will let you read battery voltage off the bicycle when charged and when problem occurs. If battery is warm and voltage is low and recovers then it is being used up by a "short". Or heavy load (use). Suppose the brakes were on the whole time. This is kinda like a short in system.
            Good luck

          • paxtana
            paxtana commented
            Editing a comment
            On sharks it is more likely to be a high resistance connection between case and cradle rather than an actual short. The power bottlenecks at the point of least contact. But yeah you should be able to see it either way if you inspect it

          The most recent BBS02 I purchased from Luna has the "Pedal Sensor Type" parameter of the programming set to "BB-Sensor-32" . All the others (maybe 4 or 5 over the past 5 years) have had this parameter set to "DoubleSignal-24".

          What is the significance of this? Does the BBS02 have a "Pedal Sensor"?

          Also, the controller on this unit still has the PAS over-ride glitch on the throttle that has vexed so many in recent years. Of the four that I can test, the ones with Firmware Version V2.0.1.1 (both version Bs, manufactured 9/16 and 11/20 )have the glitch. The ones with V2.0.0.1 (version A, manufactured 11/15) and V5.0.3.1 (version B, manufactured 1/16) do not.

          Is the firmware the root of this problem? Has Luna tried using the V2.0.0.1 firmware on the newer Version B controllers?



          Comment


            Bafang BBS02 and BBSHD Programming Cable
            I suggest providing instructions and driver for Windows 10.

            Any links?

            Comment


            • paxtana
              paxtana commented
              Editing a comment
              This is an introductory guide to using the programming cable and the Bafang Config Tool to change the options of the controller for your Bafang mid-drive motor, so we won't be going in-depth about any other tab but the Basic tab. If you own a Bafang mid-drive motor you may want to change a thing or two in the controller


              Instructions are here, driver should auto install.

            • 73Eldo
              73Eldo commented
              Editing a comment
              "The Bafang Config Tool has been designed to work on a Windows system, but that doesn't mean it won't work on anything else. It will work fine on Windows 7 systems and newer, but there are drivers available for older systems. Some Windows 10 systems might need a driver as well depending on the cable."

              I originally thought it was just me, I literally tried it on a dozen computers I have access to and no go on any of them, even ones I do a lot of oddball programming including serial devices on that likely have drivers a typical compute user would not have and still no go on those. Hours of frustration and downloading every driver every other person got to work I could find in various forums. I got the idea to look at the chip on my own and searched that and found the driver and was up and running in minutes. My cable was supposedly from Luna but since I got it 2nd hand I can't prove that. I don't recall what mine was but it wasn't one I saw mentioned in any other thread on the subject.

            • paxtana
              paxtana commented
              Editing a comment
              The only time I ran into an issue like that the cable itself was somehow faulty. Shop sent over a replacement and it worked on the first try.

            Maybe you a right paxtana. I see damage to the chip. But what chip is it?
            I'll contact Luna support.
            Thanks folks!

            Comment


              I have a 3000w cyclone kit that overheats after 5/6 miles of riding. Would a different controller solve this problem? If so what would you recommend?

              Comment


              • paxtana
                paxtana commented
                Editing a comment
                What exactly is overheating, the motor, the battery, or the controller?

                There is no temp sensor on the cyclone, if you overheated it, it would not simply shut down, so how do you know it is overheating?

                Since you are in Michigan in February I would imagine it would be almost impossible to actually overheat it even if you tried. Are you lugging the motor, towing something, etc?

              AZguy provided a driver and solved the problem.

              Why Luna support bother to waste time on someone like me I don't understand. They could simply provide info like the good guys :-)

              Comment

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