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  • Retrorockit
    replied
    I own a TSDZ2 and have ridden it some, but it's on a very small frame for guest riders. So I don't ride it much. My Nexus 7 IGH skipped in Turbo mode, so I upraded to an 8 speed IGH. The fact that the cover is cold to the touch means the heat is staying inside the motor itself. That thread contains many examples of broken gears and overheating motors. It's over 200 pages long. I suspect TLDR may be in effect here. I'm also pretty sure the climate in the Netherlands doesn't resemble Califiornia or South FL very much. I do like the TSDZ2 kit for it's size and weight. At 48V 750W the performance is good also. Mine with the plastic gear is louder than my BBSHD. Not bad just louder. If you are a strong and fit cyclist the motor will be providing a much smaller part of the power than in the case of an older, or less experienced user.
    42kph = 26mph which is realistic for this motor. A far cry from the 35MPH my BBSHD can do.

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  • tklop
    replied
    I saw a lot of paranoid suspicions, and suppositions--and not much actual experience at that thread.

    I'll share some actual experience:

    My TSDZ2 750W motor (48V system) is quite nice.

    I almost never ride it at any setting under "Turbo" (max assist). I've gone on rides of an hour-and-a-half and longer, at max assist, max speed (helping along, I can sustain 38 to 42 kph depending upon the prevailing winds) --and naturally this is almost always in the top gear on the 7-speed Nexus IGH. (all out-of-the-box factory settings--I'm not some fool who's trying to cook it by changing the default max-current).

    I have never had a hint of overheating, never an issue. No matter what I've been doing, I can hold my hand on it comfortably. The TSDZ2 gets about as warm as a house cat.

    I've found the TSDZ2 to be highly reliable. I've never even had an issue in very heavy downpours (there's a whole lot of world outside SoCal--and most of it has weather--and I'm someone who's not afraid of riding in it).

    Naturally, after a few hundred kilometers, I went through it all and snugged everything down--but other than that zero maintenance of any kind has been required.

    I did not choose the metal-gear option either (that'd just be noisy--and ultimately pointless).

    I like it. Torque-sensing is a delightful experience. The throttle is your "superman legs" ---pretty much as it should be.

    Anyways--just to balance all the negativity. It is not meant to be comparable to a BBSHD--but to a BBS02. And there is no comparison--I have far superior performance to the BBS02. I share the bike-paths with hundreds of them here, and my TSDZ2 is stronger and quieter, and I find myself regularly passing them all with ease.*

    So.... Don't be afraid of the TSDZ2 750W mid-motor. At least through my first several tens-of-thousands of miles, mine has proved to be well worth the price.

    Best of luck with your projects, everybody!

    *[note: Due to my own misunderstanding, not everything above is accurate. I've offered a correction later in this thread]
    Last edited by tklop; 09-12-2019, 11:45 PM.

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  • Hard Tail
    replied
    Thanks Retrorocket. That’s basically answered my question. The BBSHD,s I own are exceeding all expectations so I’d most probably be setting up for a disappointment with a TSDZ2. I still like the idea of a torque assist system though.

    Leave a comment:


  • Retrorockit
    replied
    You need to look around in this huge thread about the TSDZ2. Several reliability issues. Seems to be a 350W motor which is the legal limit inmany places.If 350W and 20mph suits you it's a nice kit. The 750W is moentary use rating, not a constant rating like the 1500W BBSHD.
    https://endless-sphere.com/forums/vi...45726#p1445726

    Leave a comment:


  • Hard Tail
    replied
    I’ve had my eye on TSDZ2 since first reading about them on this forum. I like the concept and the size is appealing, but I just haven’t actually seen one here in Australia yet. My wife and I only ride in PAS at low power settings anyway so the power a peck doesn’t phase me, just the cost and longevity. I’d be interested to hear how you go with your project bike.

    Leave a comment:


  • Retrorockit
    replied
    I prefer yellling for trail use. I yell "BICYCLE" so they know hat's coming. On the street with cars and AC, radios etc. I find an air horn is needed.
    The 26" Sun Rhynolite/ Shimano Deore disc wheelset is almost always on sale somewhere. Triple hollow rim. Entry level DH rated.
    https://www.walmart.com/ip/Wheel-Mas...kaAo3kEALw_wcB
    That FSR XC looks nice. I see it has an adjustable travel fork that can be pulled down for faster response on the street. Obsolete XC bikes can get you into some lightweight high ens parts for not much money.
    Kenda Nevegals are nice dirt tires.

    Leave a comment:


  • valueseek
    replied
    Not exclusively, so I’ll probably just keep using off road tires for now and replace them more often. If I can find a second wheel set then I’ll definitely pick up some street tires and the scwalbe big apple plus look really good.

    Yeah i really like the bike, especially with the motor. 26” handles amazing like you said and the drivetrain, brakes, suspension etc all feel really refined compared to the cheaper mountain bikes I’ve had in the past.

    The bell definitely need to be replaced hah, but I prefer it to yelling “on your left!”.

    I also picked up a beat up 2004 Specialized Rockhopper FSR XC that I think would make a good e-bike.

    Leave a comment:


  • Retrorockit
    replied
    Is that for street? Some Scwalbe Big Apple Plus, and upgrade the bell to an electric or air horn. Very nice bike to convert. Old 26" XC bikes make great handling street bikes.

    Leave a comment:


  • valueseek
    replied
    It’s great, I’m loving it so far. I’m still waiting for the parts to run the opensource firmware so I’m just using a 36v hoverboard pack modified to fit in a hailong battery case held on with 2 bell clinchmaster 600 water bottle mounts. It’s on a 2006 GT I-drive 4 2.0.

    I got the 250w version but it still uses 16a and changing the setting in the display does nothing.... I have no idea what the watt rating really means or if the 350w is any different at all. Maybe it’s an 18a setting..

    Yeah i I really don’t mind cadence systems either. I just thought the torque sensing wound be a good match for this bike and i definitely like how it turned out.

    Leave a comment:


  • Retrorockit
    replied
    Nice price for a kit with throttle and brake levers, I think you'll have fun with it. At 350W it will probably last OK.
    I built one as a guest bike and it's very nice. Mine was PAS only and I had to buy lots of part to get the open source firmware and display to use it. But at 750W it won't like the Florida heat. The Bafang mid drives are illegal in Europe so most of the action with these is over there. A lot of people think PAS means you do more work, but actualy if you use the lower settings on a motion sensing motor when you add more power it's all you.
    Last edited by Retrorockit; 07-27-2019, 06:51 AM.

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  • valueseek
    replied
    Good info, thank you. I’d rather stick with a small motor because I want to use mostly DIY cheap low current batteries. The light weight and torque sensing tsdz2 should work perfect for what I’m wanting to do.

    I think will be the one

    Leave a comment:


  • Retrorockit
    replied
    Here's the 200+ page thread on TSDZ2.https://endless-sphere.com/forums/vi...8931bbedf56c93
    The 36V motor has an over 90RPM limit when used with higher Voltages. When used with the normal Voltage they all have 90RPM cutoff.
    You need the 8 pin motor controller for the aftermarket displays and open source firmware. This is the one for throttle I beleive. The PAS only version won't work. Old gears, new gears, plastic gears, metal gears. Temperature modding.
    These are popular in areas where 250-350W is the legal limit. I would suggest a BBS02, or BBSHD instead. I own one. By the time you buy all the parts and mod it you're still way behind on power and reliability.

    Leave a comment:


  • valueseek
    started a topic TSDZ2 questions

    TSDZ2 questions

    Buying a TSDZ2 is a complicated option nightmare. I can’t find anyone who has written about the different versions in detail.

    So i understand:

    There are two different windings, are they different in the 36v and 48v kits?

    There are a few different display options(vldc6, vldc5, xh18) that I’ve read are not compatible with each other. Do I need to get a certain version for it to work with the programmable VLDC3?

    There is a old version with spur gears and a new version with helical gears, are the spur gear versions still being shipped? Do I need to ask and make sure I’m getting the helical version?

    To program the controller I need a st-link and a spare speed sensor, is that everything?

    The wattage options are just the current settings as far as I know.

    Anything wrong with this plan?:
    I get a helical 36v TSDZ2(vldc5) with throttle and use it with my 48v battery with the custom firmware and a vldc3 + shift interruptor.
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