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  1. S

    Cassette recommendation for hardtail MTB (off-road)

    Are there users reporting it is not working as it should? . From the functionality ability to shift under load looks benefitial even if the chain is 11speed. I do have personally Rohloff hub on my MTB hovewer i am missing shifting under load and i am planning to try it myself on the next build.
  2. S

    Cassette recommendation for hardtail MTB (off-road)

    1. the chain is indeed wider on 8 speed cassetes, however you need to also look at the cassette build itself. There are cheap 8s 11-40T cassetes however those could be not very strong. I would suggest to search for something with common big spider for the biggest gears - 1st,2nd,3rd sometimes...
  3. S

    Lishui "Open Source Firmware" project / KingMeter 5S

    Another "lazy" question: how to install EBiCS mobile app?
  4. S

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    It is just that Kunteng in some countries are easily available. Also have higher power models than Lishui does. Controllers not beig potted and cool BlueOSEC app for fine tuning controller and motor perimeters. Of course Lishui is more advanced and works with torque sensor off the shelf.
  5. S

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    thanks, for the DD motor KV seems straight forward, but how about for gear motors? Shall we take reduction gear into account?
  6. S

    Lishui "Open Source Firmware" project / KingMeter 5S

    cool thanks, sometimes i am to lazy to check it myself at first place, and besides i like to talk to all smart poeple on ES ;)
  7. S

    Converting a hubmotor to a middrivemotor

    Perhaps you can use semi- mid-drive, like put the motor somewhere mid way from the cranks to the rear wheel ? :unsure:My attempt at a lightweight EMTB with torque based PAS this you can use an Aikema 128 that is lighweigth and compact, there arę new version named 800W nominal. In addition it is...
  8. S

    Rear all axle v3 with torque sensor

    For the cargo bikes high speed above 20mph is not really recommended and even dangerous given all the mass that need to safely brake. I would optimise the motor choice to the reasonable max speed, in return you will have more optimal efficiency and higher torque that is needed to move and...
  9. S

    Lishui "Open Source Firmware" project / KingMeter 5S

    i have this tiny controller with broken display, i cannot make it work with any of displays i have so decided to load it with OSF. I have carefully examined the torque sensor wiring and signals so it works on pins: PAS - yellow wire on - TA pin FWD/RWD crank rotation - green wire on - SL pin...
  10. S

    Lishui "Open Source Firmware" project / KingMeter 5S

    if i have one of those LCD's should those be considered "S5" type or "J-LCD II"?
  11. S

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    I have also noticed small resistance when free wheling with controller on on DD motor. When i switch off the controller then it dissapear. I think you can try to enable "pwm off @ idle" however from what i read somewhere in the thread you need to precisely measure the inductunce of the motor...
  12. S

    THE DM01 MOTOR: ENGINEERING EXCELLENCE FOR E-BIKES

    Ad. 1. thanks, that is promising Ad. 2. sorry i was not precise: what weight can be read when put on the pedal? like 40kg, 60kg ? or can you provide torque reading?
  13. S

    Rear all axle v3 with torque sensor

    So what you say it should be 9pin cable, but this one is 10pin :unsure: . The thermistor is on separate wire to the possible torque signal. Or it should be torque and PAS combined? any simplest way to check the signal - oscilloscope? Or kind of UART decode circuit? Can you recomend something?
  14. S

    Rear all axle v3 with torque sensor

    i do have TDCM HCA5-F motor, apart from phase wires it does have 7 wires coming out of the cable. I suspect it has the torque sensor in the cassete. what should be the power line voltage 5V or 12V? From the grintech website the A5 motor has the 12V supply to power halls and torque sensor. Is...
  15. S

    Lishui "Open Source Firmware" project / KingMeter 5S

    the OSF version uses Torque and cadence to calculate the human power (plus sometimes torque override) but i am very curious what the principle in those original controllers we can get from Phoebe Liu ?
  16. S

    THE DM01 MOTOR: ENGINEERING EXCELLENCE FOR E-BIKES

    Perhaps you can also answer some more details about the torque sensor itself: 1. is torque reading linear? 2. what is the maximum torque reading range?
  17. S

    Anyone know about/tried TOSEVEN Mid Drive?

    Q factorThis is a bit more as Q-factor is measured on external side od cranks
  18. S

    Anyone know about/tried TOSEVEN Mid Drive?

    you can also use oval chainrings as well that are not possible on mid-drives BTW ;)
  19. S

    Anyone know about/tried TOSEVEN Mid Drive?

    Then it would give very wide Q factor that is BTW the issue of CYC motors, measuring around 190mm. As far as i remember Yamaha motors do have it around 170mm making more side clearance and more convinient biomechanical force transfer to the pedal.
  20. S

    Anyone know about/tried TOSEVEN Mid Drive?

    This is actually true, but not very different to all other motors like BBS01/2 or TSDZ2/8, the reason is the offset needed to accomodate the big gear under the chainring. You can make it even by assimetric crank set
  21. S

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    The bluetooth app has not been developed for quite long time. People reported it crashing at certain circumstances. Personally i am using it only for calibration and testing procedures.
  22. S

    Anyone know about/tried TOSEVEN Mid Drive?

    TSDZ torques sensor is in fact not linear. It does react to like 25-35kg on pedal but beyond that does show little reaction. So the question is if Toseven or CYC have linear sensor reading and what is their saturation point (max load on pedal that can be read?)
  23. S

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Personally i have not experienced. Van you post some pictures. Does it happen along with something not working properly?
  24. S

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    You mean the mobile app "BluOsec" or something else?
  25. S

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Do we have somewhere in the code a protection from the motor stall/ blocked? like if the motor is blocked for >1sec it will set the current to zero?
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