New "TSDZ2 Torque Sensor Central Motor"

[RTIII]

RTIII, my label is identical to yours except the SN has a 73 instead of your 76, and my last two digits are 06. Mine was shipped on Apr 5.

Thanks, itchy, looks like eye has is both beat with his 18A unit! Wish I had one! ... I'd just guess that the 73 vs 76 is some coded form of marching on from April to June, but who knows? If you study their web site, they are a fairly large organization and I'm sure the production isn't in the 1000s per month but might well be several 100s, or low 1000s at most.

I did a lot on my unit today but not ready to post here about it right now...

 

[RTIII]

For my next attempt, today, I'll try putting one on either side of the mounting flange, but my suspicion is that it'll be too wide for reliable shifting and I'll have to put them both on the outside.

...Note that WAY up-thread, people have reported getting two chainrings to work, but nobody gave details how - and I DID ask before proceeding! Details, we need details!

I also meet this problem that the chain wheel of TSDZ is too wide for my front Derailleur.
The official chainline dimension of TSDZ is 51mm but my roadbike front derailleur is about 43-45mm.
Also the chainline is not very good because of the wide dimension.
I really want to know how to make 2 chainrings work well for this system.

TODAY, I finally figured this out, though not everyone can implement this - but I can! ... What's needed is an adapter ring. It's a piece of steel, a full circle, as thin as can reasonably take the forces and with an inside diameter that just mounts the "spider" (the part the gears mount to that attaches them to the motor), and with an outside diameter large enough to properly support the 110 BCD mounting pattern. Steel because it's strong and can therefore be thin, but it could be an alloy but be thicker, only then you need other hardware for mounting. My guess as a rational engineer - but not yet having done the math - is that you could do it in 2.5 to 3mm steel or 4 to 5mm in AL. This ring has not only the standard 5 holes of typical diameter, but rather 10, 5 in the standard pattern and 5 more offset half way. Then, you mount the TSDZ2's stock 42T in the stock location with the adapter mounted to the outside of the spider using the original hardware, and the ideal offset can be achieved for the second chainring with an off-the-shelf 110 BCD chainring with appropriate spacers of whatever you want using the OTHER set of 5 110 BCD mounting holes - also on the inside of the spider. You could probably even do a third chainring on the outside of this! Should work masterfully well, if you have a derailleur that'll go that far!

I'm not an expert (yet!), but my bike's original Shimano dual chainring set was offset by 7mm. More or less is likely reasonable / possible. I figure, keeping it to around the width of your chain is smart!

I am going to make this adapter for myself and while I'm at it, I'll likely make more than one! Contact me if you want my help...

RTIII

 

[eyebyesickle]

RTIII, my label is identical to yours except the SN has a 73 instead of your 76, and my last two digits are 06. Mine was shipped on Apr 5.

Thanks, itchy, looks like eye has is both beat with his 18A unit! Wish I had one! ... I'd just guess that the 73 vs 76 is some coded form of marching on from April to June, but who knows? If you study their web site, they are a fairly large organization and I'm sure the production isn't in the 1000s per month but might well be several 100s, or low 1000s at most.

I did a lot on my unit today but not ready to post here about it right now...

I also got you both beat for all time high score on waaaaaay too much $$ spent, major headaches, and getting a messed up unit I eluded to in my other post. There was a good, a bad, and an ugly... I only talked about the good, trust me!

 

[RTIII]

RTIII, my label is identical to yours except the SN has a 73 instead of your 76, and my last two digits are 06. Mine was shipped on Apr 5.

Thanks, itchy, looks like eye has is both beat with his 18A unit! Wish I had one! ... I'd just guess that the 73 vs 76 is some coded form of marching on from April to June, but who knows? If you study their web site, they are a fairly large organization and I'm sure the production isn't in the 1000s per month but might well be several 100s, or low 1000s at most.

I did a lot on my unit today but not ready to post here about it right now...

I also got you both beat for all time high score on waaaaaay too much $$ spent, major headaches, and getting a messed up unit I eluded to in my other post. There was a good, a bad, and an ugly... I only talked about the good, trust me!

I'm sorry to hear that, eye.

Any chance you have a dead unit that can be an organ donor? I need the rubber end cap, part TS8-310-1363, called "Main gear cover." It got damaged in all my trial fitting of gears. The part is available separately, but you have to buy 25 of them at $1.50 each - plus shipping! The only places I've found that might have singles are in Germany and Italy... I can't believe there are no dealers / support in the USA!

 

[eyebyesickle]

oh man bummer... always with the little pieces... nah the unit just had totally messed up wiring from where they tried to do the custom thing I showed em through pictures, and it went horribly wrong...

EDIT: hehehe yeah we breached a topic, but a little bird also had something to say not very nice,,, ill leave it out of here! sorry about the lecture, wasn't directed at anyone here!

 

[RTIII]

oh man bummer... always with the little pieces... nah the unit just had totally messed up wiring from where they tried to do the custom thing I showed em through pictures, and it went horribly wrong...

You mean you had an idea, handed it over to someone else, and they botched the job? Why not just do it yourself, or were you trying to make a new product based on the TSDZ2?

HATING ON SHARING WITH CHINA[/u]. That is a ridiculous concept that I have seen blasted on these boards and THESE BOARDS ARE FOR SHARING INFO!!!! Or am I wrong?

Certainly, these "boards" are all about sharing information, and I've been trying to do my part to help others where I can. And of course there's a time and place for things to be public and things to be private, which is why I sent you a PM here last night - but you didn't seem to get it, given your response I'm replying to.

I haven't seen any of that "hate on sharing with China" here, but then I stick to our TSDZ2 corner of the world most times. But anyway, when I have seen "hate on sharing with China", the issue is that Bill Clinton's action of giving MFN trade status to China was a very anti-American-citizen act. What he SHOULD have done was argue that all tariffs can be eliminated when and where other countries match our systems of environmental and labor protection, with enforcement (not just laws on the books that are ignored), and where they are not, tariffs will be set to create that "level playing field" that somehow theoretically exists - we want to exist. But no, he trashed the working people of the USA and other developed countries. Putting "blame" for the economic situation a massive majority of Americans finds itself in anywhere other than that is misguided, at best, but then, the ultra-rich aren't helping Americans be informed. The Fake News is the regular Main Stream Media! ... But I digress; Certainly Republicans with an R after their name and Republicans with a D after their name (like both Clintons) aren't going to help us, and there's no potential relief in sight since Bernie "lost" the primary. So, what we need to do is find a way to make it in spite of these challenges. My personal biggest complaint is the time lag for doing business. Right now I've already been waiting over a week and still have some 10 to 12 days anticipated before I can get my damned battery pack so I can ride my bike with the TSDZ2 doing something more than being dead-weight.

P.S. - obviously this is as touchy subject HAHAHA!

...Really? You're the only one I've ever seen bring it up! ...

BTW, if you have new product ideas, if you want to be involved in the business of that, better to not put it up in public, of course. And I'm guessing that's what your TSDZ2 modification was all about.

Meanwhile, I'm out to make one of those chain-ring adapters I described earlier!

 

[MPM]

The official chainline dimension of TSDZ is 51mm but my roadbike front derailleur is about 43-45mm.
Also the chainline is not very good because of the wide dimension.

On the chain line, people have similar issues with Bafang mid-drives and there are suppliers of rings that offset the chain line back a bit, such as the 'Lekkie Bling Ring' or a similar product from Luna Cycles. Maybe there are other suppliers too. Those tend to be larger diameter rings because they need to fit around the protruding parts of the Bafang that pushed the front ring out in the first place.

But, I'm not sure how such rings would fit the TSDZ2, or if both motors even use the same mounting interface for the rings.

I really want to know how to make 2 chainrings work well for this system.

Maybe you can get a small (36t) and a large (46t or 52t) Lekkie ring and combine them? Just guessing here.

Can you make it work with one ring? The wide gear range cassettes used in 1x10 or 1x11 group sets are getting a bit cheaper. Or maybe you can increase the range of a cassette you have with a One-Up sprocket. What about one of those with a single Lekkie ring up front? (Does anyone here have experience with that?)

I wanted a wide gear range but couldn't find examples of people who made it all work. I ended up with an IGH, which offers the gear range I want and a good chain line with the standard TSDZ2 front ring.

 

[eyebyesickle]

Hm... I sent you an email on the fly RTIII... maybe I did miss something. I just speak my mind a lot. Not much of a filter! oops.

I saw a bunch of comments here on the board (and more specifically - let me be clear - a nasty email - to me about sharing 'tech' with china... is what triggered the rant. ridiculous notion in of itself. these are Chinese motors). It was a major rant, but not directed at you or anyone else PER SE. Sorry, again. HA! I have seen comments for quite a while about the situation (especially regarding FRAMES), so I hit it very very hard pre-emptively in the public eye (plus a comment was made to me personally)... Yea, these units are COMING from china... obviously none of us here have a problem with getting these wired up the actual way we ordered, without having to do it ourselves... and if that is sharing info with the Chinese reseller technician, then I don't think anyone sees a problem either...

The thing about the TSDZ2 mods getting posted publicly... like I said, I had toyed with the idea... but don't see that much market potential etc... I was just saying that when posting ANYTHING publicly.... it is easy for someone to scoop up. I am not worried about the consumer ever, I only want to share. In this case, I am not worried at all about this getting out, I HOPE someone picks it up, and makes it more available... I don't know that I am in the position to alone... The major thing is replacement parts... especially when we are pushing the limits on these little things...

but I was just talking about that in general, about the only thing I would be worried about when sharing information is someone I don't like as a person, or agree with generally as a business etc... taking my good ideas and unethically capitalizing on them... like anyone else... I want my way, and don't like who I don't like, for my own reasons... There is someone in particular I hope doesn't pick this up, but that is on a personal level... if I wanted to keep this secret, I wouldn't be here. The wiring diagram ETC and everything I get I AM POSTING... wasn't about business competition AT ALL or anything like that... or I would not be posting here like this. That's why I stopped posting about FRAMES much =). ANYWAY

Honestly, I wanted the most powerful TSDZ2, WITH the xh18 WITH throttle and brakes etc.... all deluxed out. I want it for myself, and ALSO, some LOCAL customers... who like the torque sensing, but don't want to pay 2+ grand for a production bike.... SO - I looked around to see who offered the XH-18 with throttle and everything,.... as deluxe as I could get it.

Turns out basically no one, at least reliably. There are issues with all 3 being hooked up at once that I am clearing up.

To be 100% clear... I do not really have that much time, I AM SWAMPED with everything I do... way overextended.... so I tried to order these things wired up right, from a decent source, and instructed them how to... via diagram and messages... I did this with MORE THAN ONE source, actually... I rather have someone else do it, then have to spend the better half of a day wiring up 3 units and testing them myself. If I can pay $50 extra for this to be done... well I MUCH RATHER do that... make sense?

If I had real intent to market these like this, as I mentioned in my personal reply... I would not be posting about them here personally, or my upgrade ideas personally... that would be on my sales page.

Little bit of a hit, mostly a miss, came up with new info on the 48v18a... so that was good... Here I am. the end haha

 

[eyebyesickle]

the two combos that I know work are 34-42 and 42-52....

OOOHHH I want to talk about Clintons and geopolitics.. I gotta pull out. sorry again about the rant... I know about some of these issues... sorry again, wrong venue...

Also, I do want to mention, I myself have been subject to messages consisting of personal attacks that included a pretty hateful rant against people in general as a race... call that kind of hate what you want... I just keep it simple - ignorant. I figured I would air out my opinion HEAVILY on the subject, again, sorry. Maybe I will go back and edit it, but maybe some people will read it =). I understand completely about the situation of the world trade... there is a lot messed up in this world for sure...

lets just get back to riding our TSDZ2's though!!

Ill be back with pics etc soon!

Let me know how that chain ring goes... I am still working on my battery... have been super busy. Hurt myself trying to put a solid tire on a rim that it was too big for earlier! hahah. I do that type of thing alot

 

[robbinwang]

The official chainline dimension of TSDZ is 51mm but my roadbike front derailleur is about 43-45mm.
Also the chainline is not very good because of the wide dimension.

On the chain line, people have similar issues with Bafang mid-drives and there are suppliers of rings that offset the chain line back a bit, such as the 'Lekkie Bling Ring' or a similar product from Luna Cycles. Maybe there are other suppliers too. Those tend to be larger diameter rings because they need to fit around the protruding parts of the Bafang that pushed the front ring out in the first place.

But, I'm not sure how such rings would fit the TSDZ2, or if both motors even use the same mounting interface for the rings.

I really want to know how to make 2 chainrings work well for this system.

Maybe you can get a small (36t) and a large (46t or 52t) Lekkie ring and combine them? Just guessing here.

Can you make it work with one ring? The wide gear range cassettes used in 1x10 or 1x11 group sets are getting a bit cheaper. Or maybe you can increase the range of a cassette you have with a One-Up sprocket. What about one of those with a single Lekkie ring up front? (Does anyone here have experience with that?)

I wanted a wide gear range but couldn't find examples of people who made it all work. I ended up with an IGH, which offers the gear range I want and a good chain line with the standard TSDZ2 front ring.

It works well with origin 42T chainring. Just a little bit askew when I use the biggest freewheel.
I also think about offset the freewheel but my frame is 130mm roadbike. It's hard to offset unless I bent the fork.
If I add an additional ring outside the motor, I think the chainline will be worse.

And I want to know what mounting bcd is the Lekkie ring? Can it be installed on TSDZ？

 

[robbinwang]

TODAY, I finally figured this out, though not everyone can implement this - but I can! ... What's needed is an adapter ring. It's a piece of steel, a full circle, as thin as can reasonably take the forces and with an inside diameter that just mounts the "spider" (the part the gears mount to that attaches them to the motor), and with an outside diameter large enough to properly support the 110 BCD mounting pattern. Steel because it's strong and can therefore be thin, but it could be an alloy but be thicker, only then you need other hardware for mounting. My guess as a rational engineer - but not yet having done the math - is that you could do it in 2.5 to 3mm steel or 4 to 5mm in AL. This ring has not only the standard 5 holes of typical diameter, but rather 10, 5 in the standard pattern and 5 more offset half way. Then, you mount the TSDZ2's stock 42T in the stock location with the adapter mounted to the outside of the spider using the original hardware, and the ideal offset can be achieved for the second chainring with an off-the-shelf 110 BCD chainring with appropriate spacers of whatever you want using the OTHER set of 5 110 BCD mounting holes - also on the inside of the spider. You could probably even do a third chainring on the outside of this! Should work masterfully well, if you have a derailleur that'll go that far!
RTIII

Your description confused me a little.
You mean to add an additional adapter inside the original spider in order to offset the chainring?
But the gap between the spider and the shell is very small.
I think it's impossible to install a 5mm steel onto it.
Maybe I misunderstand your words. I think it will be more clear to draw a picture to show your mind.

 

[eyebyesickle]

Bah, my norco has a shape to it where I cannot slide the tsdz2 all the way in the BB... Bummer! About 5 or 7mm butted up against the BB... So that makes for a really crappy chainline... It was so angled the chain was trying to grab the chain ring... Oh well... I'll get over it. I was just planning to see how hard I could push this motor on the norco, then put it on the folder frame. . So it's not a total loss...

I do want to say...

WHO DESIGNED THE WIRES IN THE BBS AND TSDZ SERIES?

Ridiculous... the BBS units have wires out the bottom, and the TSDZ have wires out the drive side, so chain slip could lead to catastrophic wire damage for your little unit. The need to be placed in the rear, or on the top side in the rear, in the middle. Seriously! I have a problem wanting to redesign everything, I will admit... but this is a legit issue, and there was no reason for it! At the very least they could've molded the housing with overlay to protect if the wires HAD to come out there... anyway... TO BE CONTINUED.

I hope the double chain works out for you... either way I will be snapping some pics ASAP, the only double chain ring I got is on the other motor in the shop =\.

 

[RTIII]

The official chainline dimension of TSDZ is 51mm but my roadbike front derailleur is about 43-45mm.
Also the chainline is not very good because of the wide dimension.

On the chain line, people have similar issues with Bafang mid-drives and there are suppliers of rings that offset the chain line back a bit, such as the 'Lekkie Bling Ring' or a similar product from Luna Cycles. Maybe there are other suppliers too. Those tend to be larger diameter rings because they need to fit around the protruding parts of the Bafang that pushed the front ring out in the first place.

But, I'm not sure how such rings would fit the TSDZ2, or if both motors even use the same mounting interface for the rings.

I really want to know how to make 2 chainrings work well for this system.

Maybe you can get a small (36t) and a large (46t or 52t) Lekkie ring and combine them? Just guessing here.

Can you make it work with one ring? The wide gear range cassettes used in 1x10 or 1x11 group sets are getting a bit cheaper. Or maybe you can increase the range of a cassette you have with a One-Up sprocket. What about one of those with a single Lekkie ring up front? (Does anyone here have experience with that?)

I wanted a wide gear range but couldn't find examples of people who made it all work. I ended up with an IGH, which offers the gear range I want and a good chain line with the standard TSDZ2 front ring.

MPM, robinwang,

I'm pretty sure the Bafang series has a 130 BCD whereas our TSDZ2s have a 110 BCD. However, I already published, only in the last day upthread here, how to make an adapter. Tomorrow I should have, unless my day gets derailed (!!), some three or five of them available. You'll mount one to the stock TSDZ2 spider and chainring using the stock attaching hardware that came with your unit with the stock Tongsheng positioning on the inboard side of the spider and the adapter mounted to the outside surface. In this way, the original 42T chainline is not disturbed. Then, you'll have five OTHER attachment holes you can use to mount one or even two other chainrings to, and the next one needs to be about 7mm outboard of the 42T. From there, you can use various spacers to your hearts content if you can find derailleurs to go that far and mount three chainrings if you want. ... I'm pretty sure my bike's stock Shimano front derailleur will do a fine job with the 42T and a 52T mounted in this way. I should know tomorrow or Friday and post images.

I could also, on request, make one for the 130 BCD if someone wanted... Just PM me if you want any of these adapters. Or, of course, feel free to make one yourself!

 

[Norton]

Speaking of all these front chain ring options....

Is it ever spec'd what size chain the stock chain rings are made for?

I have 9 and 10 spd chains on my bikes.

SRAM's new line of MTN ebike specific drive train components went back to the 8 spd chain width.

 

[eyebyesickle]

Speaking of all these front chain ring options....

Is it ever spec'd what size chain the stock chain rings are made for?

I have 9 and 10 spd chains on my bikes.

SRAM's new line of MTN ebike specific drive train components went back to the 8 spd chain width.

Im not a bicycle guy, but my chain was grabbing the ring... but also the line was off. So that wasnt helping either...

You can get whichever attachment for the ring, and put whatever on... Im sure you know...


Guys, I want to say, I AM NOT HERE TO SELL TSDZ stuff at all at all at all.

That being said, I got a bunch of 48v18a controllers on the way, because i only got 1 48v18a unit, and the local couple were not having it! Plus, I need one, and obviously others do. I'm gonna sell the rest on ebay because I have to get a few or they gouge, but I will toss em to anyone on here at cost...

There is no going back to 15a now they make 18a. There is small lead time. These are technically street legal max, huh... Actually technically over. They do go to 58.8v fine too, for the record.

The limited RPM is higher too... Ill verify 100% stats this week. Units already being produced, so that is cool.

Again. Not here to sell, I want them and have other things going on. FOR ES MEMBERS AT COST. other people are going to try to bust heads, I already see it coming. I need to recoup on my purchase, otherwise wasn't worth it to order, only motivation here, other than to give back and give a F U to the big guys hahahahah

 

[eyebyesickle]

42/52 next to adaptors for reference

 

[MPM]

42/52 next to adaptors for reference

Right, 42t and 52t rings fit on the standard TSDZ2 adaptor, but what happens to the chainline when you put it all together? I assume the 42t is still at the standard TSDZ2 51mm chainline, and the 52t is further out, at around 60mm or so. Do I see that right? If so, it sounds like both are too far out for some bicycles.

And nice looking adaptors, thanks for the pictures! I found them on-line now too. If the BCD 130 version offers the same interface as Bafang, it should accept those rings that are offset inward (Lekkie, Luna or whichever) to fix the chainline. Provided there is no other interference with the TSDZ2.

 

[MPM]

Provided there is no other interference with the TSDZ2.

I just looked at my bike and it seems to me that Lekkie rings won't fit because they would hit the motor housing. At this point I don't believe that you can get a better chainline on a TSDZ2 using a Lekkie ring. Sorry for going off on that tangent!

 

[Norton]

... I got a bunch of 48v18a controllers on the way, because i only got 1 48v18a unit, a...

There is no going back to 15a now they make 18a. There is small lead time. These are technically street legal max, huh... Actually technically over. They do go to 58.8v fine too, for the record.

The limited RPM is higher too... Ill verify 100% stats this week. Units already being produced, so that is cool.
..

I'm interested!!
You're saying 'for the record' these are Tongsheng approved 18A / 52 Volt controllers for the current 500 watt / 48V TSDZ2?
And now the motors can be driven at ? 700 - 930 watts?

This is not somebody's hack job were you wait to let the smoke out of the motor and/or controller, is it?
And it plays nice with the current Displays?

I'm interested, after you provide more details!

I like what you showed with the chain rings. I guess I'll wait and see how my 26" wheel full suspension mtn bike does with the stock 44T with a 9 spd chain. I wish it was documented what size chain the stock rings are made for.

 

[eyebyesickle]

... I got a bunch of 48v18a controllers on the way, because i only got 1 48v18a unit, a...

There is no going back to 15a now they make 18a. There is small lead time. These are technically street legal max, huh... Actually technically over. They do go to 58.8v fine too, for the record.

The limited RPM is higher too... Ill verify 100% stats this week. Units already being produced, so that is cool.
..

I'm interested!!
You're saying 'for the record' these are Tongsheng approved 18A / 52 Volt controllers for the current 500 watt / 48V TSDZ2?
And now the motors can be driven at ? 700 - 930 watts?

This is not somebody's hack job were you wait to let the smoke out of the motor and/or controller, is it?
And it plays nice with the current Displays?

I'm interested, after you provide more details!

I like what you showed with the chain rings. I guess I'll wait and see how my 26" wheel full suspension mtn bike does with the stock 44T with a 9 spd chain. I wish it was documented what size chain the stock rings are made for.

I'll get the chain info... I am learning all the bicycle stuff people, I have a guy that checks it before I ship, I promise HAHAHHAHAHAHAHA. I will get you the chain info man, mine is sticking for sure and it isn't the line or the grime (almost RHYMES, I tried).

--------------------------------------------------------------------

Like I said in my plan (just kidding no attitude - I have not even done any work, I just talk alot)

DONE (mostly):
- Dual Chain Ring - CHECK
- Upgraded CONTROLLER 48v18a (enough for me) - CHECK
- UPGRADED (blue nylon to copper) GEAR - CHECK (still need to modify gear to see if we can smoooooth out. It is not bad though)
- COMPATIBLE WIRING SYSTEM THROTTLE, ETC WITH XH-18 (check, EXCEPT LIGHTING, shouldn't be a problem)and also - waiting on programming protocol so we can change existing controllers so you don't mess em up trying... I am not 100% if this can actually happen, but my 'people' will get to the bottom of it. (My little green men. =) Does anyone get that reference?)

---------------------------------

TO DO:

- INJECT MOTOR WITH GREEEEAAAASY stuff hopefully assist in thermal transfer and extra power will push through added resistance?? I obviously do not have all the answer YODA. someone heeeeeeelp me. HEEEEELP

- Look into 104/130bcd attachments and some alternative double or even just single chain ring alternatives!



-----------------------------


then TESTING!!!

I am super busy, and also reviewing some of these solid tires. After messing with them all, I really see why people hate them so much. I got lucky with my first choices! hahahahaha. anyway I am trying to get to this, but still am SO SAD, because the pivot point, in the suspension frame, STOPS THE TDSZ FROM FULLY INSERTING THROUGH THE BB, BY LIKE 5mm! exactly 5mm. I need double washers! errrrr.

Now I am actually thinking about putting a IGH in the rear... which I REALLY DIDINT WANT TO because it is full suspension./..... I am BUMMED. I guess I knew it would never stay on the NORCO.... I CANNOT WAIT on my black folding frame.... still gonna be like a MONTH>>>> UGH

 

[eyebyesickle]

After I finish this thing... I am going to print a 2" circle sticker for the housing... that says:

9FUN

:lol:

 

[pexio]

Speaking of all these front chain ring options....

Is it ever spec'd what size chain the stock chain rings are made for?

I have 9 and 10 spd chains on my bikes.

SRAM's new line of MTN ebike specific drive train components went back to the 8 spd chain width.

In trial fitting, the stock chainring works fine with my 12 speed mountain bike, so your 9 and 10 speed bikes should be good to go.

 

[Norton]

Guys,

Here's the bike stuff:
There is a 5-6-7-8 spd chain. That's the width of the links. One chain works with those systems.

Then Shimano wanted to squeeze more cogs on the standard free hub that is on modern rear wheels.
So they came up with a thinner chain for 9 spd cassettes on the rear. Thinner cogs too. Still fits the same free hub. My mtn bike has 3 chain rings on the front and 9 cogs on the cassette on the back. 3 x 9 drive train. 27 speeds.

Then Shimano did it again and made a thinner chain for 10 cogs on the back. My Bike Friday folder is a 3 x 10 drive train. 30 spds. My Gravel bike is a 2 x 10. SRAM Force group set, baby !!

And believe it or not Shimano, SRAM and Campagnolo now have 11 spd chains and cassettes.

Not to be a bike snob,,, but it seems ebike people here are not high end bike people.
We can be snobs and look down on the whole subject of ebikes. But not me! I like all sorts of tech !

I suspect the TSDZ2 chain ring may be a 5-6-7-8 spd size and if you try to use a 9 or 10 speed more narrow chain on it the chain can appear to snag on the ring for no apparent reason.
I may have to swap out to a newer 9 spd chain ring on the TSDZ2.

 

[RTIII]

I suspect the TSDZ2 chain ring may be a 5-6-7-8 spd size and if you try to use a 9 or 10 speed more narrow chain on it the chain can appear to snag on the ring for no apparent reason.
I may have to swap out to a newer 9 spd chain ring on the TSDZ2.

Thanks, Norton, for all the background and I am SURE you are correct: It's a "5 - 8 speed chain." I say this because I have an older 5 speed (and only five until I get a dual chainring going up front again!), from 1982, and I've used it quite successfully for a while now as a regular bike but with the motor mounted and turning that 42T chainring while just pedaling. (STILL waiting on the damned battery! On the other hand, TODAY I am in the process of making my own second (and maybe third ?!) chainring adapter. Experience has already proven to me that there's no point in trying to move the stock chainring inward any - it's already so damned close; with 2.9mm added, it rubs the rubber cover on the motor. I tried to move it over only 2mm but had trouble even with that, so I gave up. Now I'm going to leave the damned inner gear where it was, exactly, and use an adapter mounted to the OUTSIDE of the spider that then provides a NEW, otherwise unused set of mounting holes for a second chain ring.

...Of course, I have to prove it works, but I don't see why it would not - at least at the moment I don't! :lol:

 

[eyebyesickle]

Guys,

Here's the bike stuff:
There is a 5-6-7-8 spd chain. That's the width of the links. One chain works with those systems.

Then Shimano wanted to squeeze more cogs on the standard free hub that is on modern rear wheels.
So they came up with a thinner chain for 9 spd cassettes on the rear. Thinner cogs too. Still fits the same free hub. My mtn bike has 3 chain rings on the front and 9 cogs on the cassette on the back. 3 x 9 drive train. 27 speeds.

Then Shimano did it again and made a thinner chain for 10 cogs on the back. My Bike Friday folder is a 3 x 10 drive train. 30 spds. My Gravel bike is a 2 x 10. SRAM Force group set, baby !!

And believe it or not Shimano, SRAM and Campagnolo now have 11 spd chains and cassettes.

Not to be a bike snob,,, but it seems ebike people here are not high end bike people.
We can be snobs and look down on the whole subject of ebikes. But not me! I like all sorts of tech !

I suspect the TSDZ2 chain ring may be a 5-6-7-8 spd size and if you try to use a 9 or 10 speed more narrow chain on it the chain can appear to snag on the ring for no apparent reason.
I may have to swap out to a newer 9 spd chain ring on the TSDZ2.

Sounds like an accurate analysis! hahaha. I just appreciate the patience and the willingness to teach. I will learn and spread the news to all the rude ebikers hahaha