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  1. MacGuyver_Season1

    How To, 50A BBSHD Controller Mod

    Hmm, interesting. Will look out for that, thanks.
  2. MacGuyver_Season1

    How To, 50A BBSHD Controller Mod

    Well, just jumped into the deep end and ordered a High Voltage kit w/ BAC855 controller.
  3. MacGuyver_Season1

    How To, 50A BBSHD Controller Mod

    *Technically not “Version A” with the Anderson phase connectors, but the older B version with the rotor which still had the issue of breaking. Circa mid-2016.
  4. MacGuyver_Season1

    How To, 50A BBSHD Controller Mod

    No it’s actually version B. I have an original version A too. I‘ve actually since swapped out version A windings into version B motor housing and reinstalled version B rotor (so bottom bearing size matches and still maintain strength of version B rotor). Working with no error codes so far, but...
  5. MacGuyver_Season1

    How To, 50A BBSHD Controller Mod

    Hmm…42T chainring (lowest I can go for chain line offset) with a 50T 1st gear? Should spin up fast. Looks aluminum and not steel though. Of course rear derailed not spec’ed that large but see people using an extra long B screw. Starting to understand how this motor works (the hard/expensive...
  6. MacGuyver_Season1

    How To, 50A BBSHD Controller Mod

    Also, FYI tested it on bike stand. Would run wide open for 20 minutes (or more) under no load with zero rise in temps of case (controller or stator side). I obviously bogged it down in too high of a gear under load to fry windings like that. So it can handle the current, just not heat/stress/low...
  7. MacGuyver_Season1

    How To, 50A BBSHD Controller Mod

    Well, very surprised by that. Thought battery would be weakest link, not core. Did that with original nylon gear as well, which I thought would be somewhat of a buffer. Lessons learned I guess. Looking at heat sinks, fish tank temp probes, potentially a larger/wide-range cassette. But….it was...
  8. MacGuyver_Season1

    How To, 50A BBSHD Controller Mod

    Efffff
  9. MacGuyver_Season1

    BBSHD - has always seemed to have high resistance when un-powered - Suggestions?

  10. MacGuyver_Season1

    BBSHD - has always seemed to have high resistance when un-powered - Suggestions?

    Not sure how strict rules are where you are. Could always use a big Nalgene water bottle holder to cover up. I don’t have experience with anything other than the HD, so can’t give an opinion there. The newer HDs are made very well, just bought a motor core after having one since 2016.
  11. MacGuyver_Season1

    BBSHD - has always seemed to have high resistance when un-powered - Suggestions?

    I have one on the shelf, plan to install. I think a lot of people do just fine with nylon gear if you don’t abuse it. I’m trying to run more power through mine and believe it is the heat that causes nylon to fail. I don’t think it is ceramic FYI (not completely ceramic at least). I think it is...
  12. MacGuyver_Season1

    BBSHD - has always seemed to have high resistance when un-powered - Suggestions?

    Argh!!! I actually have one of those on order, was hoping the Lekkie had a better bearing. But interesting, need to break out my torque wrench and see where I’m at.
  13. MacGuyver_Season1

    How To, 50A BBSHD Controller Mod

    What have I created?! Soldering job was less than perfect for sure, likely used more solder than needed. Perhaps increased resistance even more? This is with programming set at 30A (theoretical 60A). Display is only reading 0.5A and maxes out around 4A during acceleration? Again, under no load...
  14. MacGuyver_Season1

    How To, 50A BBSHD Controller Mod

    Temporary mockup with amps set at 27 (x2 with shunt), new motor core w/ new mosfets and rotor. 61 mph bench test under no load…surprised battery could support. More testing to come…
  15. MacGuyver_Season1

    BBS02 Improving Heat Dissipation

    And this to attach to bottom: https://www.amazon.com/gp/product/B0B1M2J61F/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&th=1
  16. MacGuyver_Season1

    BBS02 Improving Heat Dissipation

    Good idea, bad idea? Just ordered so will find out: https://www.amazon.com/gp/product/B08YRVM51Q/ref=ppx_yo_dt_b_asin_title_o00_s01?ie=UTF8&psc=1
  17. MacGuyver_Season1

    BBSHD - has always seemed to have high resistance when un-powered - Suggestions?

    I opened up my BBSHD to work on the controller but also noticed how much resistance/friction there was in the gears with no power. I thought the issue was the original old/bad grease, so I took apart more. The actual large bearing around the large steel gear on the chainring side has a very high...
  18. MacGuyver_Season1

    How To, 50A BBSHD Controller Mod

    Luna got back to me and said their BBSHDs come with the better mosfets and rotor now, so I went ahead and ordered a new “bare bones” motor/controller. Will report back progress. Thanks everyone.
  19. MacGuyver_Season1

    How To, 50A BBSHD Controller Mod

    Thanks. Do all new BBSHD motors now come standard with the improved rotor?
  20. MacGuyver_Season1

    How To, 50A BBSHD Controller Mod

    Before I throw this whole thing off of my balcony, fix would be to upgrade main rotor? At this point, should I just go for a whole new kit?
  21. MacGuyver_Season1

    How To, 50A BBSHD Controller Mod

    More bad news, but thanks. Better to know now.
  22. MacGuyver_Season1

    How To, 50A BBSHD Controller Mod

    OK thanks, will do
  23. MacGuyver_Season1

    How To, 50A BBSHD Controller Mod

    Is there a way to know if I have the version with the old/bad rotor shaft?
  24. MacGuyver_Season1

    How To, 50A BBSHD Controller Mod

    There was also a big spark when I was looking at where I needed to solder the resistors. Is there a way to safely drain the capacitors so it is safe to work with (realize that spark could have fried one of those tiny components too)?
  25. MacGuyver_Season1

    How To, 50A BBSHD Controller Mod

    Ugh…well, tried hooking up controlled to display to test prior to soldering the resistors and I got the Error 30 failure to communicate message on display. Is it game over, I must have broken something removing the controller from case, just buy a new one now?
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