TSDZ8 would you buy one ?

[o00scorpion00o]

I have the TSD2ZB and out of the box it was advertised as 80 Nm but I became quickly aware that it was not even as powerful as a Gen I Bosch 50 Nm, in fact, the difference was quite noticeable.

With the opensource FW it made a difference, more notably was how much cooler it ran but still not as powerful as a gen I Bosch with 50 Nm and certainly a very long way off the claimed 80 Nm.

The TSDZ8 is claimed to have 90/120/140 Nm, I'm not sure, do you set this in software or is it dependent on battery voltage ?

I'd be very concerned buying another for to end up with the same grossly over rated power output.

Has anyone experience with the TSDZ8 and TSD2ZB ?

My TSD2ZB has a creaking noise, so I do question build quality.

I sometimes think I'd be far better off going back to geared hub motors, they were so much better in my opinion and so much smoother for road use. My old Mac 8T was a far better setup, If I were to go hub again I'd probably get a 10 or 12T Mac but they are seemingly very hard to come by now, em3ev no longer sells hubs.

By the way, is Paul still running em3ev or did someone else take over ?

I do have a Gen I Bosch but swore I'd never buy another seriously speed restricted ebike again and the price of most bikes with a decent torque Bosch is at petrol scooter or even smaller cc motorcycle, insane.

I got my full motorcycle license last year and I absolutely love it, amazing experience.

 

[amberwolf]

Are those torque ratings at the output of the drive unit itself?

Or are they rated presuming a specific gear ratio and wheel size on the bike the drive is on?


If the latter, then unless bikes are identical with the different systems on them, they couldn't be directly compared.


If the former, then they would still need to be in the same gear ratio to direclty compare them while riding, under the same riding conditions.

 

[o00scorpion00o]

No Idea about the ratings vs ratio, wheel size, they don't give that information on their website but all I know is that riding the bikes up the same hill the Bosch pulls the strongest, the TSD2ZB is faster of course because the limit is removed and it's got 52v battery vs 36v.

Has anyone tried the new TSDZ8 who had the TSD2ZB and can tell me if it's notably stronger ?

 

[2old]

I've ridden a BBS02 off road for the last 10 years and, although I don't have the power rating, it's very infrequently out of Level 1 (of 5) and takes me up almost any hill in that configuration. I still haven't heard enough good things about the reliability of "TS" to trust them and the PAS system on the BBS works fine for me.

 

[Speedgeezer]

Has anyone experience with the TSDZ8 and TSD2ZB ?

My TSD2ZB has a creaking noise, so I do question build quality.

I sometimes think I'd be far better off going back to geared hub motors, they were so much better in my opinion and so much smoother for road use. My old Mac 8T was a far better setup, If I were to go hub again I'd probably get a 10 or 12T Mac but they are seemingly very hard to come by now, em3ev no longer sells hubs.

By the way, is Paul still running em3ev or did someone else take over ?

I have experience with an early TSDZ2 (2017) and I know many things changed but they were junk back then.
Build quality was terrible as was the engineering. Secondary reduction gears were totally wrong and the pair were mismatched. I figured it was a early supplier issues but the same issues were reported for about another year that I know of. I like the BBS02 far better.

I have a 10 year old (Gen 1) MAC12T inside an Alex 26" rim + 10Spd 36-11 Cassette, with a Phaserunner, CA3 & an NCTE Torque Sensing BB with 2200 miles on it. I may be willing to sell but not cheap.

I believe Paul is part owner of MAC now, but I haven't heard from him in years.

Ebike motor BLDC Hub motor For Sale | MAC

MAC is the best Ebike motor Scooter motor manufacturer in China. Offering quality product to global customers

www.macmotortech.com

 

[Chalo]

Bosch is a trap for fools. Tongsheng is underengineered junk. Pick your poison, or decline poison.

 

[docw009]

One of the prolific posters on the UK pedelecs forum, saneagle, recently disclosed his current three ebikes include the TSDZ2 and TSDZ8. Ask over there in the conversion forum. Another poster over there re-sells the TSDS8 kit with the formal labels and firmware to avoid police seizure if you're in London.


.

 

[E-HP]

The TSDZ8 is claimed to have 90/120/140 Nm, I'm not sure, do you set this in software or is it dependent on battery voltage ?

I'd be very concerned buying another for to end up with the same grossly over rated power output.

Has anyone experience with the TSDZ8 and TSD2ZB ?

These comments are after 3 weeks of riding (only a couple hundred slow miles), but most of the shortcomings were apparent on the first ride.

I believe the torque ratings are based on input voltage (36V/48V/52V). Doesn't really matter, since I believe they are bogus numbers, but I don't have another mid drive for a frame of reference. On my hub bike, anything over 120 N-m (15mph or below) will cause it to pull hard and wheelie. There's never any situation I've had so far where the TSDZ8 puts out even the lowest 90 N-m rating, even when I tried it with 14S of lipos with zero voltage sag (it did run better than at 13S). My neighbor has a Brose motored bike with 90N-m, and it feels like it. He tried mine, and while it felt responsive at first, he took it around the block, and up a pretty steep block and said he was working a lot harder than he'd expected near the top. The throttle is a joke, so I basically use it like a switch to throttle the bike when I want to take a pedal break.
Still, I've gotten used to it and it's been fun as long as fun includes lots of exercise. It won't keep up with most factory bikes with plain cadence sensors like a rad rover, and they will be riding with little to no effort, so that's discouraging, but as long as you're just pedaling at your own pace (slow), it's fine. It will keep up with some of the slower stand up scooters. I always feel like the assistance is just shy of what would be a comfortable ride, but if I push hard on the pedals, the assistance shows up (but nothing approaching the specs). It will climb the steep hills around my house, but with a fair amount of effort. I've ridden a couple of routes up the hill, maybe 15% or so, but besides taking forever, I think I'd be dead tired climbing 20% routes. Motor case was lukewarm at the top.
I'm hoping OSF will help, but if I knew I would be spending money on the interface and cable to install it, I probably wouldn't have gotten the motor. On the other hand, it's gotten me back on the saddle while I take my time fixing my other bike, and I need the exercise after being on the couch for 9 months.
I have no experience with the TSDZ2B, so I can't compare.

 

[neptronix]

Hey scorpion..
Two ideas for you, i don't know about legality in your area:

Bafang BBS02/01 is a pretty solid drive and i think it might be supported for a while. Run it on an external controller for a good time.

lightest.bike mid drive is ~1.6kg and 1000w capable, expensive, and kind of a basket case ( it's Italian ), but you won't find a higher density mid drive in addon form ( it's Italian ).

 

[Sturmey]

....I sometimes think I'd be far better off going back to geared hub motors, they were so much better in my opinion and so much smoother for road use. My old Mac 8T was a far better setup, If I were to go hub again I'd probably get a 10 or 12T Mac but they are seemingly very hard to come by now, em3ev no longer sells hubs.

pswpower do a 100nm geared rear hub motor kit (mxus xf19) to Ireland from Germany for 277 euro free delivery, no taxes. They are 26 inch wheel but I fitted their 26 inch xf15 (65 nm) to a 27.5 bike and it worked and looked ok. It might even get you up Mount Leinster.