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  1. S

    Rear Dropout Torque Sensor

    idBike TMM4
  2. S

    Need help with a google search.

    https://endless-sphere.com/forums/viewtopic.php?f=28&t=13532
  3. S

    M600/M500 Crank Arm missing need help!

    Very unlikely, as the spline count is different - 10 vs 12.
  4. S

    Mechanical disc brake thin hex key

    I used mill and rotary table to machine 19mm (or 3/4") flats, but a hand file and a little bit of patience would work too, I think.
  5. S

    Dengfu M09 Endruo/Freeride build log

    aliexpress?
  6. S

    60v 30ah brand new battery

    That's sad news. I have this unit too and was hoping to use it with my DD hub motor. Any thoughts about bidirectional meter like this?
  7. S

    Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD

    https://endless-sphere.com/forums/viewtopic.php?f=2&t=48753&start=1302
  8. S

    Basic chain drive kit, need help installing

    The kit is probably designed to replace your 6?-speed freewheel with a pair of single-speed freewheels. No cassettes or plain sprockets here. You'll need to unscrew the freewheel body from the hub first.
  9. S

    Cooling Solutions?

    Forced air cooling: https://endless-sphere.com/forums/viewtopic.php?f=28&t=56666
  10. S

    Single shaft spoked hub motor for fatbike/trike wheel - Does it exist?

    This kind of motors do exist, but i'm afraid they're somewhat expensive. https://ebike.heinzmann.com/en/systems/cargopower/motor Geared but clutchless, single-sided version is available too.
  11. S

    Mini Cyclone Motor RPM

    Aren't these motors rated 360 RPM no-load at 24V after reduction ? http://www.cyclone-tw.com/dc24.htm Or 3600 RPM before reduction https://endless-sphere.com/forums/viewtopic.php?t=13423&start=31 - which means something around 150 RPM/V. So 8500 - 9000 at 60V seems just right to me.
  12. S

    New Approach to 4500W Mid Drive

    Pretty clever. Really like it. Something like reasonable man's Tangent drive. :)
  13. S

    Direct-Drive conversion of the new GNG/cycmotor X1-pro 3000w

    The motor is claimed to produce torque over 4Nm? If so,the CSK12 seems to have pretty hard times here, transferring the torque up to ~25Nm - this is 2.7 times of it's nominal value, which is 9.3Nm. OK, Stieber says Tmax=2xTn, but 18.6Nm is still not enough. Or are my calculations wrong?
  14. S

    Built my first bike! Help me make it even better.

    Magura and Domino?
  15. S

    Parts compatibility for rat rod build

    You'll need just one more cable. https://www.aliexpress.com/store/product/Waterproof-Motor-Cable-Motor-Wire-Motor-Connector/738588_32816702314.html?spm=2114.12010612.8148356.11.6385e7d1Y8zLu3 2nd or 3nd version, depending on your controller placement.
  16. S

    Direct-Drive conversion of the new GNG/cycmotor X1-pro 3000w

    There's a mistake. 32T 219 chainring is impossible with 104 BCD. It's diameter will be smaller than 104mm. https://endless-sphere.com/forums/viewtopic.php?t=46630
  17. S

    Bafang G3xx series high reduction ratio geared hub motors

    Any information about the rotor type would be interesting, lam thickness, IPM vs SPM etc. The low pole count might be an indication of IPM rotor, like BBSHD has. This thread shows the differences between SPM vs IPM rotors of Bafang mid-drives - 16 vs 8 poles. Now about hub-motors - as the...
  18. S

    what motorcycle tire fits a 16" bike wheel?

    Any info? They were talking about this back in 2000 already. https://motocrossactionmag.com/the-20-inch-tire-revolution/
  19. S

    what motorcycle tire fits a 16" bike wheel?

    16" bicycle rims and tires are referred as ETRTO size 305mm, which is exactly 12".
  20. S

    Adding Torque

    The one pictured is 100A shunt. Yes, it's large and heavy. A much smaller 50A one should be enough for everyday use, I think. https://www.aliexpress.com/wholesale?SearchText=50A+shunt&ltype=wholesale&d=y&tc=af&initiative_id=SB_20181217163658&origin=y&catId=0&isViewCP=y&jump=afs
  21. S

    Throttle on drop bar

    Sure about that? Road bike bars are typically 15/16", about 23.8mm. The aluminium ring has 27mm OD,so the wall thickness will be around 1.5mm after conversion - strong enough in my opinion.
  22. S

    Where are the hq geared hub motors?

    https://ebike.heinzmann.com/en/systems/cargopower/motor
  23. S

    BLDC Motor options

    https://endless-sphere.com/forums/search.php?keywords=Boma
  24. S

    crank freewheel dimensions?

    Perhaps this thread? https://endless-sphere.com/forums/viewtopic.php?f=16&t=56565
  25. S

    Identify motor help and some questions...

    Looks like the version of MXUS mini with 6 bolt interface. If you look carefully, two of them are actually visible on first picture. In upper&lower right corner.
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