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  1. greenspark

    New Bafang Crank-Drives

    My first post on this thread was number 66, a very long time ago. Now, I am posting number 4,436 and reflecting how much has changed since those early days. It's over ten years since I went to Suzhou to visit the Bafang factory to sort a CST motor issue (a manufacturing defect they did not...
  2. greenspark

    Abnormally large spark, burned me. What's going on?

    The spark was not the charger. It was reassembling a bike where the final step was to plug the battery cables into the BBS02. The first time it sparked and I instinctively pulled back. Figuring I was going too slow, I tried again, controlling the instinct to pull away, and it turned into an arc...
  3. greenspark

    cheap Chinese 36-72V headlight, horn, taillight

    Instead of adding a hub dynamo to my ebike, I decided to try one of these new 36-72v headlight/taillights. The good stuff seemed awfully expensive, better to try the cheap Chinese stuff first to make sure it was the right way to go. Here is my report. I went on to AliExpress and bought an LED...
  4. greenspark

    Show Us Your Homemade Battery Housing

    Army surplus with zip ties Saddle leather - homemade
  5. greenspark

    Hunting mid-drive build - frame choices

    https://sfbay.craigslist.org/nby/bik/d/santa-rosa-kona-mountain-bike/7214766180.html Kona Mountain Bike - $750 (santa rosa) https://chico.craigslist.org/bik/d/chico-specialized-mtb/7218236015.html Specialized MTB - $400 (Chico)
  6. greenspark

    Abnormally large spark, burned me. What's going on?

    Back in January 2013, I was visiting the Bafang factory when Yonree showed me a new prototype - the BBS01. Riding it in suit and tie in freezing weather, I asked him to sell me the first production model when it came out. Three months later, they sent me serial number 17, which I wrote up in...
  7. greenspark

    Veteran returning to market BBS02/03/HD what to buy?

    In Jan 2013 I visited Bafang and test drove the first prototype BBS01. Had to buy one. In April, they sold me serial number 17. I documented my experience on this forum, and folks found it helpful to get the information out. After 6 months testing, I put together a buying group and bought 27...
  8. greenspark

    Two defective C695 Displays - advice would be appreciated

    2014 purchase 750W BBS02 - one of the first from Paul at EM3EV.com. Paul's 52V battery, C695 four button display. Runs like a champ and Paul has been great on support (we put together a buying group of 27 motors that demonstrated to entrepreneurs that NZ was a great place to open a shop for...
  9. greenspark

    Anyone put a Bafang BBS on a Brompton Folding Bike?

    Just got a Brompton off our local auction site. Have not collected it yet. Has anyone installed a Bafang BBS01/02 Mid-drive motor on a Brompton? I know that front hub motors have been used, but I would prefer to have the motor drive the gears.
  10. greenspark

    Bafang BBSxx - fault finding and fixes

    31 Pages of comments, so I only read the first and last page. We are asking for the findings of those 31 pages to be summarised into known faults, perhaps as a new sticky when it is compiled. In January 2013, we visited the Bafang factory to sort out a CST issue, and their rep showed us the...
  11. greenspark

    BBS02 mid drive CLONES

    We are in correspondence with Xofo now, will provide updates as we progress.
  12. greenspark

    How would you write ideal ebike regulations

    If we, as the forum, were to formulate a simple set of regs that were measurable, and begin a drive to have them be global, that's how we get what we want. Problem is to ask "what should it say?" That's step one. Step two is to form, or find a global organization, that becomes the advocate...
  13. greenspark

    How would you write ideal ebike regulations

    The title of this thread is "How would you write ideal ebike regulations". If regulations are based on protection, then we need to forget walking, biking or motorbiking and encase ourselves in airbagged cars. But they are not. They are written by bureaucrats whose natural tendency is to...
  14. greenspark

    How would you write ideal ebike regulations

    What I am saying is simple: Push the envelope, screw up, and the papers will report that it was the ebike motor's fault, rather than say: woman driving with 10% vision stupidly turns in front of a truck and killed herself". She pushed the envelop and now the minions in Wellington are trying to...
  15. greenspark

    How would you write ideal ebike regulations

    http://www.stuff.co.nz/the-press/10629760/Woman-killed-riding-modified-e-bike Woman killed riding modified e-bike A coroner has raised concerns about modified electric bicycles after an Ashburton woman died in a collision with a truck. Ashburton rest home worker Donna Lusty died on May 22...
  16. greenspark

    How would you write ideal ebike regulations

    Agree except for 3. A special constant bell, like on a tram to warn pedestrians. Noise pollution. Europe has done fine with jingle bells. You just need to train pedestrians to listen for them 4. Allow on foot paths with a max speed of 15kph. Only if the rider is required to stop and...
  17. greenspark

    Best internal gear hub?

    Not sure I quite understand the reason for the analysis. I have a N360 on another Raleigh DL-1 with a Bafang BBS-01 and find that it works just fine. The amount of twisting to move from uphill low to downhill high is ergonomic, which is a fancy way of saying it feels right. Going up a 15 degree...
  18. greenspark

    Best internal gear hub?

    . I find the Sturmey Archer AB to be adequate with a 0.75 (Low) 1.0 1.33 (High) ratio.
  19. greenspark

    Best internal gear hub?

    I have a 300W BBS01 (that reads out 600W on full throttle) with a Nuvinci N360. It works. Period. No problems, it just changes the gear ratio. Not sure what the effect would be of a 750W BBS02, but note that N360 warranty is not voided if used with a 250W Euro BBS01. However an electronic...
  20. greenspark

    Bafang BBS01 on classic Pashley English bicycle

    SDI INR18650-29E 10S, 4P 36v (39) 11.2 a/hr 403.2 w/hr 2.12kg, 75mm x 83mm x 203mm (we bought 20 of these) and then I also tried the same, but in 5P config, plus some of the cheaper 2C NCM cells which seem to work fine in our 300W NZ spec motors.
  21. greenspark

    Bafang BBS01 on classic Pashley English bicycle

  22. greenspark

    Bafang BBS01 on classic Pashley English bicycle

    Yeah, we ended up putting it in the basket on one and on the luggage rack on the other.
  23. greenspark

    Bafang BBS01 on classic Pashley English bicycle

    What great news! I've been in San Francisco, and with a bit of marketing, I reckon someone could sell 100,000 units there alone.
  24. greenspark

    Bafang BBS01 on classic Pashley English bicycle

    Thanks, I think sometimes a posting gets looked at, but if no one replies, it slowly sinks into oblivion. From what I am reading, this motor is such a hit that the factory is flat out. Paul (cell man) will be carrying them (good thing, because we can be assured we will get the right...
  25. greenspark

    Wish List to Bafang for BBS01/02

    Just a qualifier here. There is a big difference between the 750W and the small 350W. The 100% throttle is important riding up a paved 15 degree hill and in the early versions of the 750W we are hearing it may need a bit of smoothing in the controller settings. We have no direct experience with...
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