Triketech wrote:I've seen a few other TSDZ2's even rode alongside a few of them, one of them being a poster on this forum. Their units were built in 2016, and much quieter than ours. Nor is ours a fluke.
If you read this entire thread, there were always reports you could summarize as either "loud" or "quiet", more rarely "heavy drag" or "little to no drag," and the speculation has long been that Tongsheng has had some manufacturing consistency - "quality control" - issues, and that seems likely. Nobody said, suggested, or intimated that it was a "fluke;" it's an aspect of industrialized production called quality control. Every unit that has been reported here that we know for sure was manufactured since early June has these two characteristics: no perceptible drag when not powered up, and no perceptible noise. Seems to me, they got their problems worked out.
Triketech wrote:As for the drag its quite minimal when pedaling. Turning the crank by hand you can feel some drag for sure, but at 90 RPM cadence it on the order of a few watts of loss not really much penalty when you can toggle that and more back with a switch.
Yeah, on your older unit. Or, as you yourself suggest, perhaps a minor assembly error that's trivially cured.
Triketech wrote:For the money this drive offers a lot; but as they say "you get what you pay for."
It's not at all clear why you're posting the same stuff here again and again; just hoping to get your digs in and hope nobody competently rebuts you? -shrug- I bet you have a financial interest in other units, such as the Bafang series as otherwise, there's no clear reason why you'd be repeating your criticisms.