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  1. M

    Problems with lead batteries. They swell quickly.

    I am quite sure you can not even get bare cells with 270EUR (60V 20Ah?) it probaly costs more - when using 2.9Ah cells, you need 112Cells to get 60V 20Ah battery (16s7p) Buy quality brand cells (LG, samsung, panasonic), also you need BMS, charger, spotwelder,. My point is that it will be...
  2. M

    Midmotor & hubmotor combo

    Looks like really nice bike! Are you really so law-obeying and patient that you just wait until you get your licence? At least go for off-road or smth! :D What brand chain it has? Keep us updated about chain life.
  3. M

    LightningRods mid drive kit

    Acrually these things should be rated by torque, not power - or at least we need to know RPM when it is rated at. Probably depends at what gear and speed you are making 5000w. There is big torque difference 10RPM vs 300rpm @5000w (in this example 30x more torque)
  4. M

    GNG, 1000W 48V BB-drive, $400

    Hi, i would like to get some dimensions/specs: 1) jackshaft nut that holds freewheel - It has become loose and I lost it while riding. I know that I used 12mm socket wrench when servicing freewheel. Tried other standard metric nuts and closest was 13mm outer, 6mm inner, but thread pitch was...
  5. M

    18650 spot welding -how to- ULTIMATE REPOSITORY

    At least my 788 spotwelder welds fine with 0.15mm nickel strip, cannot comment other welders
  6. M

    KHS Crest with modified GNG v1.1 mid-drive

    Quick note. In august I changed belt after 1100km riding. Actually it did not broke, but it seems to have stretched at bit that I did not have way to tighten it with stock tensioner bearings. I still use stock, but in previous post I have pic where I was planning to use bigger bearings (=bigger...
  7. M

    Mxus v2 versus Cromotor ???? scam??

    If provided motor can suit your needs then I would ask 150$ refund - and call it as compromise (refer that web listing that is 150 cheaper). That way they see that you are willing to make compromises and probably accept your offer. If it does not suit your needs, then make dispute (ask full...
  8. M

    8-80 volt out CC-CV board on e-bay

    I bought one after seeing this review https://www.youtube.com/watch?v=-kWps5Wpbzo I cannot find it right now, but I am sure that same author had video where he changed some settings - it had option to turn boost mode immediately on when powering up. By the way output power is also limited by...
  9. M

    Doctorbass 2WD ADAPTTO / NYX / MXUS 32kW 105 pounds

    what? If you put cells in parallel, C rating is still same. I doubt racing batteries are promoted with such false claims - their target users are not stupid.
  10. M

    18650 spot welding -how to- ULTIMATE REPOSITORY

    I know - just use whatever you have to solve problem - it is easier to use already available socket with more powerful breaker than replace existing one with type B or more powerful one.
  11. M

    18650 spot welding -how to- ULTIMATE REPOSITORY

    I had also similar problem - when turned welder on then breaker tripped. Connected welder to kitchen socket where normally electric oven is connected and no problem anymore, even when using 5m extension cord.
  12. M

    Strongest chain and cogset for 7-speed middrive bke?

    If money is not an issue, then I would try Rohloff speedhub and single speed chain
  13. M

    11 miles to work,what to expect out of 48v 1000w 15ah

    No one has mentioned one important factor - do you plan to pedal too? I pedal and commute about 33kmh (21mph) and I can get about 8-10Wh/km. I charge only once a day - after 30km (20miles). I have 10Ah 44V battery (12S LIPO) and daily I use about 5-6Ah If you pedal you can double your range at...
  14. M

    GNG 450 brushless Mid Drive - Primary Drive Modifications

    So far (600km commuting) it is working good, no broken belt or belt skipping. Stock controller modified to 30A. I have to be gentle with throttle when twisting throttle in slow speed (stock controller is really sensitive, no throttle ramping at all) - what is skipping then is rear cassette, not...
  15. M

    GNG 450 brushless Mid Drive - Primary Drive Modifications

    Here is my stock belt drive modification - only new part you need is new shorter belt (460mm length instead of 475mm) http://endless-sphere.com/forums/viewtopic.php?f=6&t=68488#p1032663
  16. M

    GNG, 1000W 48V BB-drive, $400

    Thanks. Right now I i already pushed bearing back inside (put flat screwdriver on the edge of bearing and tapped gently with hammer) and now it is tight on axle and bearing started to turn again together with shaft. Seal is still broken but I have it filled with grease and I put big washer to...
  17. M

    GNG, 1000W 48V BB-drive, $400

    Any idea how to disassemble GNG v1.1 jackshaft. It is metal tube and inside are sealed bearings and shaft. Is it press-fit? How I disassemble it? At right side bearing seal is worn/broken probaly because bearing does not move and shaft turns inside bearing! For some reason shaft is not tightly...
  18. M

    2 broken front suspension forks

    How C washer (without tab like torque washer) is different from normal washer? It does not take any torque anyway... Is it just spacer like normal washer?
  19. M

    18650 spot welding -how to- ULTIMATE REPOSITORY

    Couple suggestions/ideas: * I added fuse and connector before BMS for pack I built. Then connected BMS to this connector. That way I can bypass BMS if it somehow becomes bad or something. Or if mosfets fail shorted, fuse burns. Call it extra line of defence (fuse before BMS) and redundancy...
  20. M

    Post Pics of your electrified 26'r !

    Did you cut the frame to make hole? Or how did you put battery inside frame?
  21. M

    MEBO battery charger 48V 5A - can I adjust voltage?

    Thanks, I will need to open charger to take closer look! R13 and other resistor next to it then make voltage divider? If I replace these resistors with multiturn potentiometer (10K?) then I should have adjustable voltage? :)
  22. M

    MEBO battery charger 48V 5A - can I adjust voltage?

    Hi, I posted one extra photo with PCB and better resolution. Do you mean where R9 R10 are (bottom right)? I cannot see R13 from this picture, or is is on other side?
  23. M

    MEBO battery charger 48V 5A - can I adjust voltage?

    Hi, I opened it up and cannot see potentiometers anywhere. Same 5A charger is available 54.6V (mine), 58v, 36V etc. I thought that I just open it up and can make little adjustments - I have 12S lipo but charger is for 13S (my future battery) Any idea is it adjustable charger? Some pics here...
  24. M

    788 spot welder

    I just received 788+ spotwelder lately and today got nickel tabs so I can start experimenting... subscribing here
  25. M

    Post Pics of your electrified 26'r !

    This is my GNG mid drive commuter http://endless-sphere.com/forums/viewtopic.php?f=6&t=68488
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