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  1. M

    Bafang BBSHD and gear system for fast commuter bike

    Yes. There are other synonyms in swedish for vindstrut, also mopedstrut and gubbstrut. I found this at Tradera, a Swedish equivalent to Ebay. https://www.tradera.com/item/292217/661882716/mopedstrut-gubbstrut-vindskydd-for-ansiktet-vintage It is very similar to mine. The one I have was built by...
  2. M

    Bafang BBSHD and gear system for fast commuter bike

    The "technology" is pre-WW2. 😁 But it works well. There is no screen in front of the cone/rim and that is the beauty of it. It is a separate thing and not attached. What happens is that you get a cushion of still air in front of your face so no wind chill and at the same time no fogging since...
  3. M

    Has anyone actually used a 3x3 Nine or Revolute IGH (with or without a mid-motor)?

    Hi. I stumbled across this thread and realized there was one hub that was not really mentioned here which works fine with BBSHD. That is the Shimano Nexus SG-C7000-5D (5D means it is 5 speed for disc brake, there are others for rim, coaster and roller brake). It is a five speed made for ebike so...
  4. M

    Bafang BBSHD and gear system for fast commuter bike

    The bike works now after som troubles. I installed the new firmware and controller software and managed to disable the motor temp sensor which probably was faulty. So now it works. Used everyday to work. Some of the images are of the older iteration with an Amped Bikes rear motor kit, but I...
  5. M

    Bafang BBSHD and gear system for fast commuter bike

    Something didn't work before. Here they are.
  6. M

    Bafang BBSHD and gear system for fast commuter bike

    Hi. Here are some photos. The bike was never meant to be good looking. Actually the opposite, so I don't have to worry so much about theft. The trailer is nothing special but lightweight with suspension.
  7. M

    Battery connector melted in Bafang

    I had exactly this happening to me after 2,5 years of daily commute. Same connector. I noticed some ozone smell before it happened and erratic behaviour a few times. Mine was really melted both on the battery and dock (after applying contact spray to get me home). But I managed to replace the...
  8. M

    Possible causes for BBSHD lacking power

    Normally I would run for about 7 minutes full throttle, since that is the time it takes to get into "the civilization", just farmland and quite straight boring road in the beginning. After that I run about 35 km/h. This was more a test. I noticed that the temperature rose about 10 C in the last...
  9. M

    Possible causes for BBSHD lacking power

    An update. I disabled the motor temperature sensor using only the controller sensor and after that it worked. Perhaps still a little sluggish compared to "new" but at least I got rid of the problems with the current almost shutting down. I also checked the temperature reading with the walking...
  10. M

    Bafang BBSHD not getting full power

    Hi. I just found this post and have similar problems but at a slightly higher level. I also had a slight drop in max power during a months before this radical power drop. Mine basically shuts down when I have used to much power (above 900 W) for too long (5min) and then recuperates if allowed to...
  11. M

    Possible causes for BBSHD lacking power

    The chain wheel might not be spinning totally free, but I don't know how free it should be. I recorded a film of how it turns and stops but don't seem to be able to upload it . Since the data cable is plugged in it is a very low power level activated. The motor chainbwheel stops in about a...
  12. M

    Possible causes for BBSHD lacking power

    The log seemed okay with no error on startup. What is this "tail log" option that's on that page? One would like to be able to log while riding. Is that what it does? I flashed now with only the motor temp sensor activated to see if that changes anything, but I yet have to try it riding.
  13. M

    Possible causes for BBSHD lacking power

    I did a new test with both the batteries mounted on the bike. Both maxed out at 28.5 A and none of them had a voltage drop after the current dropped to 10A. Quite the opposite actually since the voltage increased when the amps dropped. The voltage drop under full speed load was bigger in the old...
  14. M

    Possible causes for BBSHD lacking power

    When I was riding it showed volts but I don't recall a simultaneous drop in voltage, but I will repeat the experiment and pay closer attention. The new controller software and firmware I use had the max current set to 33 A but the old battery only reached 28.5 max so that is probably battery...
  15. M

    Possible causes for BBSHD lacking power

    Well. The strange behaviour I experienced with the new battery also appeared with the old one. It wa running at around 28A for perhaps 5 min and then suddenly it dropped to 10A. It had shown short periods resembling easing off the throttle just a little a few times before that. Something similar...
  16. M

    Possible causes for BBSHD lacking power

    What happened there was that there was a poor connection between the battery holder on the bike and the battery. That melted the battery part. But I managed to dig out the cables and solder on a new contact (the spare male coming with the BBSHD) and connect it directly to the XT60 main cable...
  17. M

    Possible causes for BBSHD lacking power

    Hi A couple of months ago I noticed that my bike with a 52v BBSHD rarely passed 50 km/h, something it normally did everyday at least in one direction going to work. It was like my speed was reduced about 5-7 km/h. So, I thought maybe things needed some lubrication. My rear hub (Shimano Nexus...
  18. M

    Bafang BBSHD and gear system for fast commuter bike

    I ignorered the Norton warning and went ahead and used the Daniel Nilsson firmware and controller software and it worked fine! I am not entirely happy with all my settings yet but that can be tweaked further. Max capacity/speed must still be tested since the premiere run was with a kids trailer...
  19. M

    Bafang BBSHD and gear system for fast commuter bike

    Hi. I downloaded the STC program for running Daniel Nilssons firmware but Norton complains the STC contains the virus IDP.ALEXA.54 and put it into quarantine. Has anyone run into this problem?
  20. M

    Bafang BBSHD and gear system for fast commuter bike

    I will take a picture of myself with the gear and and post it. I forgot the feet. There I use pretty standard winter low boots/high shoes (see picture) and if it gets below -10 C snow mobile boots of the good value brand Raven see link of the model I have below. They are really warm but you...
  21. M

    Charging 52v 25 Ah UPP in a warmed and closed box outdoors in winter

    Thanks for info! I am quite sure it contains the right amount of cells because it is bigger and heavier than my previous Hailong Max 21Ah. And it is heavy as hell. Not 100% convinced of the capacity yet since I think it drains surprisingly fast at full power although it recuperates a part of...
  22. M

    Bafang BBSHD and gear system for fast commuter bike

    Yes. I need to reprogram my controller. That link looks really interesting. Among other things so that full 100% power is on the 9th power level. Now I have the 9th plus throttle making it full speed. I also need to change the constant continuous current up to 30 A from 25 A. Battery claims it...
  23. M

    Charging 52v 25 Ah UPP in a warmed and closed box outdoors in winter

    Thank you for your input! I am not worried about storage, but the charging feels a bit risky in relation to the consequences considering I live in a hundred year old wooden house. I might use my new bluetooth grill thermometer and try to measure the temperature inside the cooler during...
  24. M

    Charging 52v 25 Ah UPP in a warmed and closed box outdoors in winter

    I have been riding electric DIY l bikes for 14 years now and for the last 2.5 years went for BBSHD middrive and as of a week ago a UPP Polly 25 Ah with Samsung 5000 cells (if that is what they are). However, I have recently been more worried about battery fire (I live in a wooden house) and...
  25. M

    Bafang BBSHD and gear system for fast commuter bike

    Well, the easiest part is the actual riding. I use winter tires with metal small "spikes ", I think you call them studded tires. They resemble older MTB tires but with the addition of small metal studs. Here you can buy them everywhere where they sell bikes. Basically the same kind of tires we...
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