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  1. cyclebuddy

    Battery gone flat

    If the bike is otherwise mint, I'd look on ebay/ali for a cheap new Chinese replacement; you'll likely get a better price than trying to sell it with a bad/no battery.
  2. cyclebuddy

    Battery gone flat

    If you sell something in a private sale it's sold as seen, and there is no obligation to refund the buyer. The best way to protect yourself is to give the buyer a written receipt for the money and clearly state "sold as seen". Then it's buyer beware, entirely at their own risk, and no comeback...
  3. cyclebuddy

    Fiido D21

    To be frank, I don't know why any employer or retailer would even bother messing around with these schemes on such a minimal margin product. With a Cube, Giant, R&M etc etc, there's at least some profit to be made. But on these Fiido, Himo, Ado, Eskute, Engwe etc bikes - i.e. direct Chinese...
  4. cyclebuddy

    Solar trailer short trips

    What I think would be a really useful addition to your travel blog would be some kind of basic map to show each leg of your journey. Having spent 10 years living in Scotland I do recognise some of the names of the places you're travelling through and roughly where you are, but some kind of...
  5. cyclebuddy

    Fiido d2s burnt controller

    If you bought the replacement controller from Fiido, it should work. As you say, you may have fried the display too. Always best to discuss these things with Fiido support first before ordering spare parts. They're very helpful and likely will know what's been fried and what you'll need to replace.
  6. cyclebuddy

    Fiido D11 Folding e-bike - A sort of review

    In the interests of full disclosure, I thought I'd update this thread as I've owned this Fiido D11 e-bike for a year now. Mileage isn't particularly high given lockdowns and now rail strikes, but here's what I've found good and bad about the Fiido D11 in that first year. It's used for an...
  7. cyclebuddy

    Short distance folding ebike to put in the boot of my EV

    I'm not altogether surprised. On paper it seems a good deal, but looked at closely it just seemed to me to be too good to be true. I like a bargain as much as the next man, but superficially there's just too much on offer for the £1000 being asked - there'd have to be compromises somewhere if...
  8. cyclebuddy

    Short distance folding ebike to put in the boot of my EV

    Fiido use Yolin displays on their bikes too, some appearing to be modified to Fiido's own spec. On my own Fiido wth Yolin display, the convention is 160 = 16" wheel, 200 = 20" wheel, 260 = 26" wheel and so on. So it's 20.0 inches, not 200 inches. I think that's not a bad way of doing it: If...
  9. cyclebuddy

    Opinions on reliability of Impulse 2 motor and Nexus gears

    @USAebike seems to be saying that Kalkhoff, who purchased Daum at significant cost, and then, after trying a few iterations/modifications to try and make it workable/competitive with other motor manufacturers of the time, failed so badly they themselves chose to abandon it completely and use...
  10. cyclebuddy

    D2 flashing battery

    Email Fiido support. They're very helpful. Remember though they're in a totally different time-zone to us, so the reply will usually come when they're awake and you're still asleep.
  11. cyclebuddy

    Short distance folding ebike to put in the boot of my EV

    I'm not sure if 19.2Ah is true either, but I did watch a couple of YT video reviews of this e-bike that seem to confirm it is 19.2Ah, and the Engwe website(s) do confirm it is too. What I think makes it believable is that the front battery-holding half of the main tube (from the folding hinge...
  12. cyclebuddy

    Looking to buy E-bike

    When choosing bear in mind how much slack/length is available in the cables and how the stem folds. A 2"/50mm rise works fine on my bike, but some of the higher rise bars I think might cause issues?
  13. cyclebuddy

    Fiido D4S rear carrier rack

    There're lots of examples on both YT and the Fiido Facebook group. You may need to use spacers or modify the support leg/bracket slightly to prevent fouling though.
  14. cyclebuddy

    Looking to buy E-bike

    There are lots to choose from that will fit - it's a standard diameter (25.4mm IIRC) at the stem clamp, the width and amount of rise there's a lot of choice. Everything from Brompton bars to BMX style will fit. I bought a Carbon Fibre 50mm rise x 580mm wide bar to save a little extra weight -...
  15. cyclebuddy

    Short distance folding ebike to put in the boot of my EV

    I think your problem is more frame size rather than weight or range. Folding bikes by definition are most often "small" in size - at least when I tried a few before buying. I'm 5'10", weigh more than you, and my other normal/e-bikes are "L" not "XL" framed. I found "reach" on all the folders I...
  16. cyclebuddy

    Fiido D21

    Do you mean an EN compliance sticker? My D11 does have a CE sticker. As SF says, 36v 250w to show legal compliance is clearly printed directly on the motor (not a label). The thumb throttle is easily/simply unplugged if it worries you.
  17. cyclebuddy

    Fiido D21 Throttle Issue?

    A few have commented on that. On my year old cadence sensor D11 it's implemented as a full throttle (which technically isn't legal here in the UK), but on the newer torque sensor D21 it's only implemented as walk assist (legal but limited as you've found). Fiido keep changing these things...
  18. cyclebuddy

    A replacement battery

    No. On PC, the Bafang Config Tool, later modified by Stefan Penov. Or the Speeed App on Android. You shouldn't need either just to change max speed (at least not with the bike shown in my avatar), which you can change from the handlebar display (Program menu - PS - 0512). My bike does use the...
  19. cyclebuddy

    Tuning cheap 42V charger

    As I understand it, regular capacitors present a higher resistance and low ESR caps present lower resistance. When measured, the 42v Sans charger reads 42v before the change, and 43+ a bit open voltage when the those output caps are changed. Ideally, yes, charging to 41v would IMHO be a better...
  20. cyclebuddy

    Tuning cheap 42V charger

    I'm a qualified - albeit retired - electrician. My 3 multimeters are all Fluke and all recently calibrated. I do understand your concerns. But in reality it's fine. 2 of my e-bike batteries are 2016/7, and still give a measured capacity (on a measured charge/discharge cycle) equal today to...