TJS109

It started normally and runs well without any obvious problem, seems normal apart from the sound. I think I will give it a good run and see if it wears off before attempting any dismantling.

Thanks for that. No disk brake and the noise persists when the wheel is in the air. So it looks like I will have to investigate the motor. I something has come adrift it is a bit strange as it has not been used for so long. Tim

Hi, My yose front hub motor has developed a ticking sound when running. It only occurs when powered and does not seem to be dependant on motor power selected. It seems to occur 6 times per revolution. I have checked the spokes and some are slightly loose but I am a bit reluctant to play with them too much. The bike has not been used for 18 months, so perhaps a bearing has dried out? Any suggestions welcome. Tim

I think all the cons you mention are true. The battery must be bigger due to the width of the end caps . I am intending to use it to repair a defective battery ( still in use at the moment for short trips). The only other advantage apart from not having to do any welding is that it is easy to replace a defective cell at a later stage in the batteries life.

Thanks for the feedback. After reading your comments and the blurb on the website about the improvements I think I will try a new one they do seem to have made significant improvements and perhaps addressed the downsides you mentioned. Guess the first step is to take the shrink rap off and see what horrors are hidden beneath, will try that when I feel brave enough.

Hi, I have a battery with, I think, a bank of defective cells that I would like to repair. I am put off trying by having to weld the connecting strips to the the cells. Then I saw this saw this kit (system) for bolting cells together. https://vruzend.co.uk/collections/v2-1-vruzend-kits/products/vruzend-v2-1-diy-solderless-18650-battery-holder-no-spot-welding-colour-coded-kit Seems like a good system the main disadvantage being price and perhaps increased size but I would need to buy a spot welder if I did not use this. Just wondering if anyone has any experience of using them and how well they work. Tim

Pretty low I re-loaded the standard stock firmware as a test and had the same result.

Yes it works like the Bafang in cadence mode. I used it in hybrid mode and found it powerful enough but I tend to potter about so maybe not a good test. You have to peddle quite fast to get 15MPH out of it with standard gearing, faster than I found comfortable.

Well I have two bikes with TSDZ2s fitted. I upgraded both to the open source firmware without any problem and this improved the performance slightly. The one on the elephant bike experienced a torque sensor failure. However the opensource firmware allowed me to keep using it in cadence mode. For the use this bike gets, pottering into town for shopping etc, this is probably an improved operating mode. The other unit is working fine without problems.

Saw your comment about the lose plug perhaps I will take the cover off and have a look at the connections

Hi, I did try reprogramming with the original software and it gave the sensor error. I find that trying to use the display for anything other than basic data is impossible so I re-flashed it with the software configured for cadence mode. I had not tried to calibrate the torque sensor so did not investigate any further than above.

I was running the OSF software. The motor simply refused to run and displayed an error message which related to "torque sensor error" I then changed the operating mode for the software to cadence mode which ignores the torque sensor and used it like this. It works fine in this mode and I can't face the hassle of trying to change the sensor.

My own experience has been mixed. I have two motors both running the OSF software. On one the torque sensor has failed and I am running it in cadence mode. The other has been trouble free. I have had both a few years but relatively low millage. The performance in cadence and torque sensing modes has been fine for my purposes.

There is firmware that is supposed to work with the new controller but it is unfinished and experimental. https://github.com/OpenSourceEBike/TSDZ2_motor_controller_v2 Looking at the dates on the project there does not seem to have been much activity for a while so it may well be dormant. I read that it uses a different micro and needs a different programming approach, not sure about it being deliberately anti OSF though.