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  1. H

    Fatbike with 2500w Bafang G510 Ultra max

    Fenders look really good. Where did you buy them?
  2. H

    Just Another Electra Lux Fat 7D Build

    I wanted a relaxed fat tire e-bike for various purposes: hauling the kids, going on all kinds of surfaces, commuting in a relaxed way, hauling cargo. After much Googling I found the Electra Lux Fat 7D, which has been converted many times before due to the possibility of it being able to fit the...
  3. H

    Mid drive motors and freewheel questions

    Are there any available mid drive kits that only have one freewheel (no freewheel for the motor to the chain)? Would this add a lot of drag when neither the motor or pedals are being powered?
  4. H

    Mid drive motors and freewheel questions

    I would like the velomobile to be motorized both forwards and backwards if possible. If not then I guess a fabric covered foot hole is the next best thing. Other solutions I can think off add a lot of complexity and reliability questions. It's too bad that only a direct drive will work for...
  5. H

    Mid drive motors and freewheel questions

    Hi, I am looking into mid drive motors for velomobile purposes. For those of you who don't know, velomobiles are enclosed trikes/quads. Most of which have foot holes at the bottom to go reverse. Some of which uses a hub motor to reverse. However, since they tend to weigh 30kg-50kg and top out...
  6. H

    Is my battery dead?

    Just took the ebike out for a spin, went approximately 15 km. Seems to work fine. Everything working as it should. I have no idea what happened.
  7. H

    Is my battery dead?

  8. H

    Is my battery dead?

    Hi guys, I haven't done anything to the battery yet since my screwdriver is too thick to fit into the hole where the screws are located. However, since it is a sunny day today, the balcony doors are opened and the battery has been in the sun since this morning. I checked the power level again...
  9. H

    Is my battery dead?

    I see. Thanks for the info. Should I go ahead and open it up? I've never worked with batteries before (except replacing 1.5V batteries :D)
  10. H

    Is my battery dead?

    So I need to open it up I guess? You mean you need pictures of the battery cells? The link above shows the battery as a "package"
  11. H

    Is my battery dead?

    First of all, I want to describe a problem with my battery that happened around 10 months ago during late fall. I left my ebike with the battery attached in the basement overnight. Basement temperature was probably around 5C. The battery stopped working while I was riding it to work the next...
  12. H

    New Bafang Crank-Drives

    Great! So it should work given that the diameter and length of the unit fits. Does anyone have those dimensions? Also, does it have to fit snug in there or loosely?
  13. H

    New Bafang Crank-Drives

    Hi guys, About the Bafang mid drive, I was wondering about its compatibility with different bottom bracket threadings. From some of the pictures, it looks like it might not even thread into the frame, but rather threaded onto itself and clamped in the BB tube. I have a bicycle with damaged BB...
  14. H

    Trying to decide on a battery

    Okay, but what about the packaging? The Headway one is just a bunch of cells put together, no casing what so ever.
  15. H

    Trying to decide on a battery

    Hi, I am building my first ebike which is a tandem. I've decided on the kit but it doesn't include the motor so I need to choose. The kit: http://www.greenbikekit.com/index.php/electric-bike-kit-1/rear/36v-500w-8fun-bpm-e-bike-kit.html The battery choices...
  16. H

    Electrifying my tandem bike

    Hi guys, I have checked out packages from both Em3EV and Golden Motors and it seems like the kits are more complete with GM. The torque arms on the EM3EV site are $40. Overall it seems easier with GM but I am unsure of their quality. Any comments? They recommended me to get the Magic Pie 3 Horace
  17. H

    Electrifying my tandem bike

    Do you guys think it is more economical to have the regen braking on direct drive motors or the free wheeling and better climbing performance of the geared motor when it comes to a tandem?
  18. H

    Electrifying my tandem bike

    Okay. I see. Great comments. I would also like to add that my friend has an electric single seater bike with 250W geared motor and 36V/10Ah battery. The terrain he rides it on is the same as mine. I've tried his bike on the hills that I go on. With low battery levels, and me lightly pedaling (no...
  19. H

    Electrifying my tandem bike

    I think 30 km range without pedaling will get me a round trip to pretty much everywhere around town. I would like to do long distance touring later on.
  20. H

    Electrifying my tandem bike

    Hi! Thanks for all the tips so far. Do you guys have any suggestions on whether I should go geared or direct motors? Damage on a hub motor when going too slow - is that due to the gears receiving more torque? Wouldn't this be solved with a bigger, non-geared motor? And just to clarify, the...
  21. H

    Electrifying my tandem bike

    Hi, Good questions. Both riders do not plan on pedaling lots. We usually take it really easy on the hills, low cadence and low effort. We would like to go faster though. Frame is steel. Rear frame spacing is 135mm. Front is 100mm. Rear drop out width is 10mm. I drew a picture of the rear...
  22. H

    Electrifying my tandem bike

    Hi, I would like to electrify my tandem bike. I found another thread on this exact project here and it suggested a Smart Pie motor. But from my research on this forum, that internal controller is not very water proofed inside the motor. Therefore I started a new thread to see what you guys can...
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