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  1. S

    [cargo trike] Swapping 250W mid-drive motor with 750/1000W rear motor?

    Thanks everyone for the great input. So rear hub is out. It looks like the frame is too specific for that motor to take a BBS02/BBSHD :-/ And the few LBS around certainly don't have the expertise to even build a bespoke adapter. Only one even accepted replacing the original sprockets to get a...
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    [cargo trike] Swapping 250W mid-drive motor with 750/1000W rear motor?

    She won't mind ditching the belt drive for a chain if that means more power to climb hills. A rear motor seems to make more sense than one in the front wheels.
  3. S

    [cargo trike] Swapping 250W mid-drive motor with 750/1000W rear motor?

    Hello, Someone I know rides a Triobike Boxter cargo trike. It was fine while she used it in a flat area, but the 250W, 90Nm Brose Drive S mid-drive motor is showing its limits in a much hillier area, and the kids are only getting heavier. It uses an Enviolo Heavy Duty (380%), 135mm OLD hub...
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    Programming the Bafang Middrive BBS01+BBS02

    Hello, I confess not having the courage of reading the 49 pages of this tread to find out :rolleyes: On a stock BBS01/02, what 1) Windows software and 2) settings do you recommend to enjoy a user experience closer to a mid-drive motor with a torque sensor? Thank you.
  5. S

    From BBS01B to BBS02B: 500W+36V or 750W+48V?

    Good to know. Thanks.
  6. S

    From BBS01B to BBS02B: 500W+36V or 750W+48V?

    I also fear it can't send 25 amps. If that info requires opening the battery, it's too risky. At worst, what can happen? The BMS cuts the power and the Bafang shuts down?
  7. S

    From BBS01B to BBS02B: 500W+36V or 750W+48V?

    I asked a kit vendor how easy it was to replace a BBS01B with a BBS02B. He replied that the cables are the same, but the battery must be able to provide up to 25 amps. Considering the battery say "11Ah", does it mean it can only send 11 amps at most, so won't work with a BBS02B with the BMS...
  8. S

    From BBS01B to BBS02B: 500W+36V or 750W+48V?

    Thanks much for the infos. The 36V battery is 11,6Ah hence 417,6Wh. One router I used to draw the steepest ride (3km) gives an estimate of 80Wh. So it looks like if he wanted to go 2x faster, ie. 15kph, the 500W might be good enough. In that case, going 36V would save buying a new battery. If...
  9. S

    From BBS01B to BBS02B: 500W+36V or 750W+48V?

    Yes, he does pedal. On the lowest gear on the Nexus and the highest assistance level on the Bafang as I recommended, the bike goes down to ~8km/h. Still ~twice faster than walking, but he'd like to go a bit faster (15km/h ?) to cut down on commuting time. Fully loaded, the bike is around...
  10. S

    From BBS01B to BBS02B: 500W+36V or 750W+48V?

    Hello, Half surprisingly, turns out the 250W+36V BBS01B mid-drive on a friend's cargo bike is having a hard time climbing a ~one mile hill, with a top 10% grade. Would the extra power and torque provided by the 500W+36V BBS02B be good enough, or should he really replace the motor + battery to...
  11. S

    [Bafang + Nuvinci] Cargo bike seizes up in hills

    Good to know.
  12. S

    [Bafang + Nuvinci] Cargo bike seizes up in hills

    Morning thought: Since… 1) that cargo trike is made in the Netherlands, so rather meant for flat terrain, 2) the issue occurs in hills but not on the flat, and the Nuvinci N330 dates from before mid-drive motors, and 3) the user has to dial the motor to its maximum power (5) because of the...
  13. S

    [Bafang + Nuvinci] Cargo bike seizes up in hills

    I'll pass on the info, and see what the shop (and the bike manufacturer) does with it. Thank you.
  14. S

    [Bafang + Nuvinci] Cargo bike seizes up in hills

    That means opening the Bafang M400… which only the bike shop could possibly do — and even then, I'm really not sure they have the expertise for open heart surgery on a e-bike motor. It doesn't look good :-/
  15. S

    [Bafang + Nuvinci] Cargo bike seizes up in hills

    What do you mean with "drive unit"? If it's the Nuvinci, is there a simple way to remove its electric shifter from the equation, or does it require buying a manual shifter + couple of cables? -- Edit: What does "calibration" do on an electric Nuvinci ? What happens if it hasn't been done...
  16. S

    [Bafang + Nuvinci] Cargo bike seizes up in hills

    The cranks lock up: They won't spin forward, but she can go backwards. "A 10S5P pack of decent cells should be a bottleneck." You meant "should not be", I guess? Is there a way to investigate, see if it's the Bafang+battery, or the Nuvinci?
  17. S

    [Bafang + Nuvinci] Cargo bike seizes up in hills

    Hello, Remotely, I'm trying to help a non-techie who bought a Dutch-made used cargo trike in good condition from a bike shop. 1. It has a Bafang M400 mid-drive (MM G33.250, 36V 250W 14A; It's in Europe, hence the 250W motor)), and a Nuvinci Optimized 330 gear hub with an automatic shifter + H3...
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    Bafang M400 external controller

    I'll reuse this thread instead of creating a new one. Does someone know what that thingie is with the dots, between the on/off switch and the display? Thank you. --- Edit : Got a reply from the bike manufacturer. The bike has an Enviolo electronic "derailleur" : "The Automatic system...
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    Mock mid-drive Bafang to check if fits frame?

    Thanks!
  20. S

    Mock mid-drive Bafang to check if fits frame?

    Thanks very much. I'll have to use the BBS01 so as to remain within the 250W limit set in Europe.
  21. S

    Mock mid-drive Bafang to check if fits frame?

    Same brand, but the actual bike could be different — I might buy it second hand. It has a Nexus 7 IGH. Is there no other way than using Bafang's measures and hope it fits?
  22. S

    Mock mid-drive Bafang to check if fits frame?

    Hello, I know someone who'd like to get this entry-level front loader (without the front drive), but needs a mid-drive because she lives in a hilly place. Unsurprisingly, Google returned no hits of that bike retrofited with a Bafang motor. I was wondering if Bafang sold "mock motors" (for...
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