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  1. R

    New "TSDZ2 Torque Sensor Central Motor"

    Hi Chalo, I thought I'd chime in regarding the shaft / snap-ring groove issue because I'm an engineer. Simply, your analysis either makes some assumptions or is incomplete, however you are PROBABLY correct. Here's what an engineer without full information would say: The shaft diameter could...
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    Going Where I've Never Gone: Need basic background info on "single speed" and related components

    Hey Tom, I SURE recognize that frame! What size is it? It looks kinda small. And your seat tube high and stem, too! You'got a build page for it? I'm curious about details. Meanwhile, my FIRST Marin, the purpleish blue one now has disks AND rim brakes, plus I built-out the electrical system a...
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    Going Where I've Never Gone: Need basic background info on "single speed" and related components

    HEY Amber! It's been a few years! (I'll write you privately on on why.) ...Always appreciated your comments! (Remember the TS DZ2 motor? I've taken care of my two units, and, with the brass - maybe bronze? - gears swapped for the nylon originals, STILL get maybe 40 miles out of the battery, or...
  4. R

    Rivnuts

    Can you suggest any brands? Metric perhaps?
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    spoke threading question (cracks in rim)

    The Bill Mould analysis was good but seriously flawed. Additionally, there are some misguided thoughts or insights in the thread as well. I say that not as a person with substantial bike experience, but as an aerospace engineer and scientist, with substantial (compared with most people in these...
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    Going Where I've Never Gone: Need basic background info on "single speed" and related components

    OK, found this! Given Sheldon's comments, I soon knew EXACTLY what I was after! YAY! And thanks Sheldon and THANKS CHALO for pointing me to his stuff long ago! ...When I saw the name "sheldombrown.com" in the search results I KNEW that's where I could find a wealth of info! Looks like just the...
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    Going Where I've Never Gone: Need basic background info on "single speed" and related components

    Thanks E-HP... I'm in the SF Bay area, too, by the way. ...I've never thought too much of hub motors, but your description sounds enticing! ... If you don't mind my asking, what scale of $$ was your "econo" model? ...THANKS for the help with the nomenclature! Fixed gear vs single speed. Got...
  8. R

    Going Where I've Never Gone: Need basic background info on "single speed" and related components

    Hi All, I'm not a novice and I'm not an expert on what I'm asking about - obviously! I'm ignorant but not stupid! So you get where I'm coming from, etc, a little bit of background: WAY back in, oh, late 2016... I think, I got hit by a car while bicycling and kept injuring myself (and making it...
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    Marin San Rafael Euro frame-up TSDZ2 powered build

    Good job with the mileage you've done already. With the TSDZ2 I think you'll find the miles just melt away behind you. You're going to need a lot bigger battery! :D Meanwhile, be sure, when you transport Cecil with you to Italy, you don't have a bad experience - I recommend you read this...
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    Marin San Rafael Euro frame-up TSDZ2 powered build

    Thanks, John. I've decided to make these bikes as a business. It's called Bad Knee Bikes - http://BadKneeBikes.com I'm still in the developmental phase, you'll see the web site is just a start - more shell than web site. As for the speed sensor and such, I recommend you post your query(s) on...
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    New "TSDZ2 Torque Sensor Central Motor"

    You might want to look for where I added them to my two bikes for some simple lessons learned. The second of the two (the San Rafael) is better done, of course, but there are good points in the process documented for each. The second type stand is MUCH easier to get right in terms of rotational...
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    New "TSDZ2 Torque Sensor Central Motor"

    John, here's one of my two TSDZ2 equipped bikes, this one very similar to yours in many respects: The "build thread" for that bike is here: https://endless-sphere.com/forums/viewtopic.php?f=3&t=89956 I use it regularly, was just out in it today. A round-trip errand run to my bank was around...
  13. R

    New "TSDZ2 Torque Sensor Central Motor"

    ...I think me and my TSDZ2 hold the world's record for speed; my brand new unit from eye, on its first time out got me up to an indicated 172 miles per hour! 8) :lol: Since I couldn't reset the unit, I had eye swap out both the speed sensor and VLCD-5. Now it works normally - got it up a...
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    The SB Cruiser : Amberwolf's 2WD Heavy Cargo Trike & Dog Carrier

    No, it doesn't. :wink: The weight transfer from the rest of the vehicle to the front as braking begins to happen - no matter what part of the vehicle initiates the braking - is nothing short of amazing, and, the harder you brake, the LESS EFFECTIVE the rear will be, due to this effect. This...
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    The SB Cruiser : Amberwolf's 2WD Heavy Cargo Trike & Dog Carrier

    Hmmm... What about solving the "instant start PAS" requirement, that seems to require some measured rotation, by having some sort of extra magnet mechanically go past the sensor? ...I'm guessing from your other comments you're not excited about this because it's not automatic. ...How does it get...
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    The SB Cruiser : Amberwolf's 2WD Heavy Cargo Trike & Dog Carrier

    _If_ it was only bent, then the heat wouldn't likely weaken it because you're not heating it beyond a critical temperature, but if it has cracks already, it's a lost cause except possibly for welding. Even then, with your equipment - a wire feed mig, I'm guessing? - I wouldn't expect it to work...
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    The SB Cruiser : Amberwolf's 2WD Heavy Cargo Trike & Dog Carrier

    Those are some bad-ass spokes you got there. A lesser-spoked wheel wouldn't have made it at all! What are they, 4MM in diameter?! :shock: Or do they only look larger than "normal" in the photos? Looks like the right sized washer could help save the pulled-out holes. IF you had an oxygen...
  18. R

    New "TSDZ2 Torque Sensor Central Motor"

    ...I recommend you contact whoever it was who sold you the unit and ask them for support. Any error codes like that will be product specific. If this is a Tongsheng product, you can try emailing them, but I didn't have any luck with that!
  19. R

    The SB Cruiser : Amberwolf's 2WD Heavy Cargo Trike & Dog Carrier

    I've read with curiosity the discussion about the brake cables and their sleeves. I'm pretty skeptical about the purported issue, or maybe I don't understand it. Is the issue that you don't want to lose any lever travel in starting the braking effect? You're saying the cables stretch AND the...
  20. R

    New "TSDZ2 Torque Sensor Central Motor"

    That's fine, but the only thing I "got wrong" was making my statement a little too general. For example, in the context of the TSDZ2, what this thread is all about, there is no such thing as tearing up drive trains. We're talking 750W, max, that I've ever seen. And, you can go too far with...
  21. R

    New "TSDZ2 Torque Sensor Central Motor"

    It's never a mistake in e-bikes to either buy more power than you think you need (unless there are laws, as in some countries in Europe), or buy "more battery" than you think you need. Batteries degrade with time - a larger battery will likely still meet your minimal needs in a few years as it...
  22. R

    New "TSDZ2 Torque Sensor Central Motor"

    Hi Gang, This is my first post in this thread of the new year, I think! I spent most of January with a bad back, but cycling once more and I've got a new problem... But first, I had to catch up in the thread, and along the way I found some great contributions here (!!) - and this is one of the...
  23. R

    New "TSDZ2 Torque Sensor Central Motor"

    No, depending on what you mean by "controller", I am pretty sure you cannot; the wires just are not there to do it with, and adding said wires is exactly what Atrihalov appears to have done - along with also some magical connection inside the controller that makes it work. So, IF you mean by...
  24. R

    New "TSDZ2 Torque Sensor Central Motor"

    Good to know, Chalo. Also, that same company sells the metric version as well: http://www.aircraftspruce.com/catalog/topages/rivetnut12-03708.php
  25. R

    New "TSDZ2 Torque Sensor Central Motor"

    To clarify what Tom said: The TSDZ2 does NOT come standard with the wiring in the harness for the throttle and all indications are that if your TSDZ2 did not come with throttle from new, you cannot add one later unless you're as brave and adventuresome as Atrihalov is! Please, Atrihalov, tell...
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