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  1. K

    2 Chainrings on TSDZ2B - is an adapter necessary?

    If you want to run two chainrings on a TSDZ2B will both rings install onto the existing spider that is part of the motor or does one need to purchase an adapter? I've seen some adapters for both 130BCD and 104BCD but it's unclear if these adapters will allow installation of two chainrings or...
  2. K

    BBS02 vs BBSHD - how much can you alter programming also

    So I already have the BBSHD and I know of it's advantages in heat dissipation and torque over the BBS02, however I'm looking for a lighter weight motor. Since I can't afford a Cyc motor (or at least not in the budget right now), I had been looking at TSDZ2B for a lighter motor with bonus torque...
  3. K

    Any suppliers selling TSDZ2B that will work with 52v battery?

    I want to put a TSDZ2B on my TerraTrike All Terrain recumbent trike and was wondering if anyone knew if the this current iteration has a display and stock firmware that will recognize full voltage on a 52v battery? Or, would I need to flash the open source firmware onto a TSDZ2B stock motor? I...
  4. K

    Is there much market for a used BBSHD with very large 52v EM3EV triangle pack?

    Just that quick question basically. I'm contemplating getting the TSDZ2B to use with my new smaller EM3EV Super Shark 52v battery - mainly for torque sensing, lower wattage, and lower gross weight of motor. I'm using the BBSHD on a tadpole trike now and it's really kind of overkill. Originally...
  5. K

    Question about watt hours display on DPC18 for BBSHD

    Okay, so I have a "48v" BBSHD that I purchased a few years ago from EM3EV with a 52v triangle pack. The pack is 17Ah and it was charged to 90% before I took it out for the first test ride, which is when I snapped the photos I've attached. On the display I guess I have it configured to show the...
  6. K

    Is there a company that can rebuild a battery into a new configuration?

    Specifically what I have is a an EM3EV triangle pack that I purchased back in probably mid-2016 if I had to guess. It actually doesn't have a lot of use on it despite being that old. In fact, the 2 1/2 years it's not been in use at all and all I have done is regularly put a charger on it at the...
  7. K

    BBSHD and Rohloff - shift sensor?

    So, I've got a BBSHD and in the past I've used it on a cargo bike along with an Alfine 8 speed hub, and NO shift sensor. I learned early on with Alfine hubs that you pause when shifting and I found that the momentary pause before shifting was enough to cut off the BBSHD anyway, so no shift...
  8. K

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

    So I have a BBSHD and for a while I ran it paired to an Alfine 8 internally geared hub. On a few occasions when I managed to run my battery down to the low voltage cut-off I found the bike to be very difficult to pedal, even in the lowest gearing combination that I had. It was like I was...
  9. K

    Looking to trade my welding rig for a recumbent trike

    Due to obvious shipping/deliver concerns this trade only applies to people with short-ish driving distance of Chicago, Illinois. Either Chicago and surrounding suburbs, or possibly northern Illinois, Northwest Indiana, and Southeast Wisconsin. Title says it all, but the specifics are...
  10. K

    SOLD!! NOS NuVinic N171 with everything to rebuild $150 SOLD!!

    SOLD I'm taking a loss on what I spent, but this is new, never-ridden NuVinci N171 hub (purchased for over $100), from an ebay seller, along with a new shifter, all small parts for replacing shift box, shift rod, cog, and even a bottle of the non-Newtonian fluid for whenever you'd need to do a...
  11. K

    Limiting maximum power of BBSHD?

    Random question - on my recumbent tandem trike build I don't think *needing* the e-assist will be so much a necessity as something we use to help extend range. I originally bought the BBSHD because most people I asked said it was better at handling heat and could output torque better for use...
  12. K

    Rohloff with BBSHD - shift kill switch or not?

    So, I was having issues with the shifter on the NuVinci N171 that I'm using on my recumbent tandem trike build. The e-assist is Bafang BBSHD so the choices for geared hub were Rohloff or N171. I bought the N171 because it's WAY cheaper, but the cables are SO LONG that the drag (with or without...
  13. K

    When you make bonehead errors when lacing a NuVinci for use with BBSHD

    TL;DR - pay attention so you don't have to lace your wheel over again. Wow, what a rookie mistake. So I bought a NOS N171 hub to use on my full-fat tadpole tandem trike powered with a BBSHD (and of course two tandem riders), and in the documentation from the N171 manual they call for 1-cross...
  14. K

    Maximum allowable size disc rotor on NuVinci N171 hub?

    So I'm ditching the derailleur drivetrain on my tandem tadpole trike in favor of a NuVinci N171 hub paired with my BBSHD motor. I downloaded the original spec sheet/manual for the N171 install and nowhere in it does it specify maximum size of disc rotor. Currently, with the regular derailleur...
  15. K

    Which geared hub for BBSHD in a full-fat tandem trike?

    So, I've built this beast of a tandem trike based on all 26x4.0 wheels and currently the rear wheel is built with a 170mm fat bike hub and a 9 speed derailleur drivetrain. My BBSHD is up front at the captain's position and at the stoker's position I have an independent drive system (same one...
  16. K

    BBSHD has quite a bit of resistance when pedaled un-powered

    Title says it all. I've had the motor about a year or so and when it's under power it works flawlessly, however when the battery gets critically low and the controller cuts it off or you just try pedaling without the motor on, the resistance is so great you pretty much have to use the lowest...
  17. K

    Full-fat tadpole tandem trike - build log

    I've embarked on creating what might be the most outlandish tandem trike ever created and decided to share a build log with all you fine folks. I hope you'll enjoy seeing the progress of the build. Feel free to chime in with questions as I post updates. First, a little background. I've been...
  18. K

    BBSHD on tandem?

    The way that most tandem drivetrains are laid out, whether it actually has a shifter at the middle/stoker position or is a chain that runs directly to a geared hub - if you stick a BBSHD on the front of the bike (captain's position), then does the chainring tooth count on the motor even matter...
  19. K

    What do you think of "e-bike specific" drivetrains?

    So I'm building this tandem recumbent tadpole trike that will have a BBSHD installed on it. The stoker seat will be removable so that a cargo deck can be installed so the trike will be able to do double duty as cargo hauler as well as tandem. Anyway, thinking about that REALLY LONG chain and...
  20. K

    Any problem with BBSHD being part of a 2x drivetrain?

    In continuing my idea of a recumbent cargo trike (tadpole configuration), I've been thinking about the drivetrain. Right now I use an Alfine 8 speed internally geared hub on my current cargo bike which has the BBSHD installed on it. That bike will be going back to pedal power only and the BBSHD...
  21. K

    One stop for solar charging ebike info?

    I've been reading through page after page of threads on here mentioning solar recharging of ebike batteries but I'm finding little in the way of a more simplistic breakdown of what is currently known about the best panels to use and what sorts of components to use to make charging an ebike...
  22. K

    Will BBSHD work okay to drive dual 20" wheels

    Title says it all. For clarification though, I'm considering a project making a recumbent cargo hauler that will be either a trike (one wheel in front, two rear wheels), or a quad-wheel vehicle similar to the Velove cargo haulers that are being used in Europe by a number of companies including...
  23. K

    BBSHD - considerable drag when unpowered?

    I've had a BBSHD installed on my cargo bike for about 3 months now, and while I like the system, when it's unpowered (ie I have off or no assist), there seems to be a tremendous amount of drag. When I had this bike set up with a geared hub motor in the front wheel, I could ride it unpowered with...
  24. K

    Bafang BBSHD DPC18 display question

    I have the Bafang BBSHD and the DPC18 full-color display. I've attempted to tweak some settings like clock, number of assist levels, etc. For some reason if I set assist levels it defaults back to 5 and while it records total mileage and saves that (trip mileage), the assist levels don't seem to...
  25. K

    Bafang DPC18 display - battery life - when to charge

    When I bought my Bafang BBSHD for my cargo bike it came with the C965 display which I quickly learned does not register proper battery life for 52v batteries. I now have a Bafang DPC18 display which does in fact properly register the voltage. Since installing the new display with a fully 100...
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