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  1. P

    TSDZ2 front mech, adapters needed

    Sorry for the delayed reply. I got it working. I used a clamp-on to direct mount adapter from Problem Solvers. The mech I used is a dual pull, direct mount, for triple chainrings. Since I am only using it on a double chainring, the high limit screw was too short. I replaced this screw with a...
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    TSDZ2 front mech, adapters needed

    I am trying to install a front mech on my TSDZ2, but I need help choosing components. I've tried 3 mechs already, so I'm a tad confused. I had this working before, but at some point I lost the mech. I want to use a direct mount/braze on front mech, and an adapter (my bike is only designed for...
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    TSDZ2, OSF - throttle not working

    Further info: I am using the 860c display. The firmware version is 1.0.0. I have enabled "street mode" in the configurations. I have set throttle to be "enabled" in Street Mode. There is still no response from the throttle, whether the word "assist" is in orange or in white.
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    TSDZ2, OSF - throttle not working

    I have installed a TSD2 on my recumbent with open source firmware, but the throttle does not work. When I twist the throttle, nothing happens. The motor is the 8 pin version, from eco-bike.com in TN, USA. The battery is from AliExpress. The throttle is a twist grip. Walk Assist works...
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    Tongsheng TSDZ2 - unavailable on AliExpress?

    I bought a Tongsheng TSDZ2 last year on AliExpress. There were loads of them - 250W, 750W, 36v, 48v, 52v... I need to buy another one, but I can't see any of them on AliExpress. There are a lot fewer on ebay, too. Why? Has it gone out of production or something?
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    Very short range from battery, trying to diagnose

    @amberwolf thank you for contributing. I run the factory firmware. I agree that the battery is fine. I'll be honest. I feel that in this thread, we have been chasing the battery as a scapegoat, when the problem more likely the controller. Look at the evidence again. I left the battery...
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    Very short range from battery, trying to diagnose

    Yes. Definitely 52v version.
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    Very short range from battery, trying to diagnose

    Picture of the batteries
  9. P

    Very short range from battery, trying to diagnose

    Sorry for the delayed reply. No, mild environment, gentle hills. Not strenuous at all. I've opened up the battery. All the connections look secure. The cells are a baby pink, cylinder shape, and about 8 cm long. I'm pretty sure it's a red herring, and is a controller issue. How do I...
  10. P

    Very short range from battery, trying to diagnose

    My battery seems to have a very short range. My setup - The battery is 520Wh, 52v, 10Ah. It's a shark form factor. - It is paired to my Tongsheng TSDZ2 mid drive engine, factory firmware, on my recumbent bike - I always ride it with max assistance. Symptoms - I did a test ride of 15...
  11. P

    Tongsheng, add throttle functionality

    Yes, that's right. Thank you!
  12. P

    Tongsheng, add throttle functionality

    Hi @obcd. I stripped open the cable and found 3 wires: red, green and yellow. I can read a voltage between the green, and either of the two other wires. I used a cable tie to keep the throttle closed. I am having trouble identifying which one. Is there another way to tell? The wiring in...
  13. P

    Tongsheng, add throttle functionality

    Where do the throttle wires go after they leave the controller? I have the 6 wire controller, VLCD5 display, and a throttle that connects to the display. Hi Hasaf. Maybe we can help each other.
  14. P

    Tongsheng, add throttle functionality

    Thanks. I will install the throttle first.
  15. P

    TSDZ2 Chainline and Sacrificing Cogs

    Hard to tell, but my gut instinct is "you'll be fine". Installing a temperature sensor is a sure way to prevent any problems. I advise keeping a low enough gear you can cycle home on a flat battery. Apart from needing a get-me-home gear, no. Having a motor should mean you need a smaller gear...
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    Tongsheng, add throttle functionality

    @ilu thank you for your help. I do not quite understand how it works: 1. Do I follow these instructions, but install the throttle instead of the temperature sensor? 2. I can have either a) the throttle, or b) the temperature sensor, but not both. Is this correct? 3. I need the open source...
  17. P

    Tongsheng, add throttle functionality

    I use my Tongsheng as pedal assist only. I would like to add a throttle to it. I have a throttle lever, but the plug on the cable is the wrong shape to connect to the motor unit. AFAIK the Tongsheng comes in two versions, with & without throttle. I seem to have the version without. Is it...
  18. P

    tsdz2, no power to motor

    I apologise for the late response; I have been ill. I apologise. Let me make up for it: Actually, I took a multimeter to the battery and found zero charge. I dismantled the battery and I found a blown fuse. It is the Shark type, oblong with the pull handle to remove. - Remove all the screws...
  19. P

    tsdz2, no power to motor

    Is it possible that I have simply blown a fuse, which I can replace instead? If not, I may retrofit one to a future power cable. I wish everyone was this direct in life.
  20. P

    tsdz2, no power to motor

    There is no power to the controller at all. The battery is fully charged. Yes, but there was a big spark when I was soldering some wire (I had forgotten to turn the battery off). I've asked the seller on Aliexpress for another one. The worst they can say is no.
  21. P

    tsdz2, no power to motor

    You're welcome, but I'm back to square one. There is no power to the controller either, this time. A local electrician can do nothing. I have ordered another VLCD5 controller to test it with. Hopefully it is just a bad controller, because it is the cheapest part to replace.
  22. P

    tsdz2, no power to motor

    You're right @AngryBob. One pin between the motor & the controller was bent slightly. I straightened it with a nail clipper. It works now.
  23. P

    tsdz2, no power to motor

    There is no power to the motor on my tsdz2. I can turn it on and the screen (VLCD5) lights up. However, when I turn the pedals there is no power. It has worked before, but not today after I transplanted the kit from my upright to my recumbent. I have re-read the manual and I am satisfied it...
  24. P

    p850c compatibility, flexible open source software

    Right, I need to be more precise. I mean this firmware on Github: https://github.com/OpenSource-EBike-firmware/TSDZ2_wiki/wiki/Features-and-configurations-for-version-0.19.X#Bafang_850C_information_and_configuration. It says it's compatible with Bafang 850c. I think the P850c is a newer...
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    p850c compatibility, flexible open source software

    I'm aiming to install the Flexible Open Source firmware from casainho. I recently obtained a P850c controller. Will they be compatible? (The answer is probably listed somewhere, but I'm a bit of a noob and very baffled. Trying to keep it simple.)
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