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  1. D

    Cycle analyst alternatives?

    I've been using a cycle analyst for the past 10 years and have the cav3 now, but it's starting to malfunction. I think it's time to get something a bit more modern looking. Unfortunately I also use a phaserunner, so that would have to be changed as well. I like the configuration options...
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    Very small, ligtweight, and nearly invisible conversion wanted

    im looking to convert an old bike to electric. Ive made over 10 bikes already, but its been a few years since the last and Ive never really tried to hide the fact that they are electric... Anyways, this bike only needs to be 200-250w and very difficult to tell its electric. No throttle, no...
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    New cycle analyst

    Just wondering if there is any news on a new cycle analyst? Ive been using the display for 3 or 4 years now and I am really beginning to get annoyed by the 80s/90s look of the cycle analyst. I would love to have the same features, but in a more aesthetically pleasing case.
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    wiring up 3 switches

    full disclosure... I know how to solder and understand very basic electronics, but I'm pretty much a novice when it comes to this stuff. Anyways, I have a 52v battery (em3ev) that I want to run 4 switches from. Switch 1: Headlight/taillight rated to 60v Switch 2: GPS tracker (20v) connected by...
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    Possible over heated battery

    So, i decided to build a battery box for my triangle battery. I used wood to make the triangle and then plexiglass for the sides and everything is wrapped with vinyl. Now I'm just wondering if the battery is going to get too hot. I haven't made any breather holes (just two holes for cables). I...
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    Bosch battery compatibility

    I have the opportunity to buy 2x36v bosch ebike batteries for very cheap (about $40 usd for the 2). Problem is that i don't plan on using them on a bosch motor. I heard there is something inside then that makes them work with (and only with) bosch motors. Is this true, or can I use them on any...
  7. D

    Frame for bosch motor

    I have an ebike with a bosch mid drive that had the frame snap after getting hit by a car. The motor seems fine and everything still turns on... I was hoping to salvage it and buy a new frame, but i can not seem to find any frames for sale. Anyone know where I can buy a generic frame.
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    36v silverfish battery

    anyone got a good link for a high Ah 36v silverfish battery in Europe? They are not the most popular batteries so options seem kind of limited.
  9. D

    Looking for this tool to remove my front chainring on a bewo middrive

    Anyone know where I can get one if these tools? Preferably in Europe or even better Copenhagen. I found some online, but they are too small. I need 44mm
  10. D

    Cheap, but decent sensored sine wave controller

    I am looking for a somewhat cheap controller for a 52v battery that can handle 40A peaks. Its like a jungle out there. I currently have a phaserunner on one bike and then 3 or 4 kt controllers lying around, but they all have some sort of problem and I dont know enough about electronics to...
  11. D

    mt60 for phase wires

    i have a 1000w hub motor that I'm currently lacing in a 24" rim. it will be powered by a 52v battery that is rated to 60A. the controller is only a 30A max. so I won't be using the battery's full potential, but that's fine for me (and the battery)... anyways, my question is probably a stupid...
  12. D

    ni-cd to lipo

    not sure if this is in the right place, but I have an older remote controlled car that uses a 7.2v nicad battery. I was wondering if I could just put some 7.4v lithium batteries in it. do I need to change anything or is it just plug and play? m the current batteries are only 750mah and the...
  13. D

    luna x1 in europe

    I keep seeing all these people with the x1 enduro bike and it looks very enticing. They problem is that i dont live in the USA and Luna only ships to US and Canada... Is there a way to buy it in europe? or a very comparable bike?
  14. D

    Moving the brake caliper inwards

    I just put a rear hub onto a fat bike, but I have a problem... The existing caliper needs to move inwards (closer to the hub) by about 2 centimeters. Is there an adapter that will allow for this?
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    Hub motor bounce

    I was wondering what would cause a rear hub to bounce? I put my bike upside down and hit the throttle and the entire bike shakes. Looking from above, the wheel seems pretty true, but I'm assuming it's not? Is that likely the problem?
  16. D

    Copenhagen ebike owners/builders

    We're looking to gather all the ebike builders together in a Facebook group. That way we can help each other out if needed. I'm sure there are some battery builders out there and maybe some welders. There is a new group on FB now so please join...
  17. D

    Infineon controller help :)

    I have a cheap 1000w rear hub motor that came with a kit. It has hall sensors and a blue, green and yellow phase wires. My controller is a 12 fet em3ev infineon sensorless controller also with blue, green and yellow phase wires (I know I should've probably gotten the sensored controller, but I...
  18. D

    Best 8 speed chain

    Tine for a new chain. I'm running 3000w hub so I don't need anything short string now, but t I want a good chain that will last and won't break the bank :) I may be upgrading to a cyclone 3000w so something that can handle that would be nice :)
  19. D

    Wiring help

    ok, i already got input from someone on how i should be able to wire this all together, but i would like to see if anyone else has some other way. I have a cycle analyst, em3ev infinion controller and a 52v battery. My bike has a on/off key, the controller has 2 wires that must be connected to...
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    "other" brand mid drives

    Besides BBS (bafang), cyclone and tangent, are there any othe DIY low/mid power - mid drives that you all would recommend?
  21. D

    cheap, but somewhat reliable 250w middrive for trike

    My neighbour wants to convert his trike to electric, problem is that we live in europe and the law states that 250w is the max you can have. I know this is very underpowered, but he wants to remain completely legal. Ive tried to convince him otherwise, but to no avail. His trike weighs 32 kg and...
  22. D

    On bike digital voltage metre

    Does anyone have any experience with one of these: https://www.aliexpress.com/item/1Set-Electric-Bike-Scooter-Accelerator-LED-Display-with-Key-Knock-Roller-Skate-board-Half-Wrist-Throttle/32781815321.html im just looking for a cheap and easy way to monitor my battery voltage. I have one of...
  23. D

    Recumbent trikes

    Im beginning to get interested in recumbent trikes or more specifically Electric recumbent trikes. Ive never rode a recumbent before, but i think i might want to bite the bullet and just go for it. Does anyone have any experience with these bikes? I think id like to get a trike and electrify it...
  24. D

    small / external controller mid drive

    I have a cargo trike that i need to put a mid drive on.. Problem is that the frame is odd and will not allow for mounting below the bottom bracket and a simple bafang/8fun BBSxx is just too big for the weldend triangle above the bottom bracket... So i need somethign small that i can throw into...
  25. D

    any definite info on the mxus 5k turbo?

    i see they are selling the 5k turbo on alibaba now, but does it actually exist and if so does anyone have any experience with it? I seen a post a while back saying that it was planned to come out, but i havent followed that thread and cant find it to see if there are any updates.
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