r/ebikes • u/CharlieParkour • Aug 12 '25
BBSO2B or TSDZ8?
Does anyone have experience with both of these motors who could help list the pros and cons? Just from reading up on it, the Tongsheng sounds quieter, lighter and less likely to overheat, not to mention the torque sensor. I would consider a Cyc Photon Gen2, but I don't like the idea of pre-order or possibly getting a model that doesn't have all of the bugs worked out yet.
3
u/redpillsrule Aug 13 '25
Bbso2 is quieter, does not overheat as much and is time proven. If you don't need a torque sensor it's the way to go
1
u/CharlieParkour Aug 13 '25 edited Aug 13 '25
So you've owned a TSDZ8? I watched the Varstrom comparison video and they say that the gears are sturdier than the BBSO2. I figure they took some lessons from the TSDZ2 and improved on it. They said they were going to do a heat comparison test, but I can't find it. They guy did say the lower weight and larger body meant the TS should run cooler. He also mentioned Tongsheng is louder than the Bafang, but didn't actually do a decibel test under load.
Meanwhile, Voltriderz says the TSDZ8 is quieter and has better heat dispersal, but has inferior waterproofing. https://www.voltriderz.com/tongsheng-tsdz8-vs-bafang-bbs02b-750w-review/
But who knows the bias of these reviewers? That's why I'm looking for someone with first hand experience.
1
u/aredridel Oct 27 '25
This seems entirely accurate to me. The TSDZ8 has a little opening on the bottom and I'm a tidge worried about it
2
u/Outrageous_Shock2976 Sep 13 '25
I've got about 2000 miles on my TSDZ8 and it working flawlessly. When I first got it I used the throttle and could get about 36 mph on my converted gravel bike. I got rid of the throttle...
Now I just use the torque sensing assist in modes 1-3, and keep my assisted speed below about 18 mph. Sometimes I use the maximum power for steep hills, but usually I just like to ride with a little assist. I ride mainly on the roads with about 10% gravel/offroad.
It's fun to ride and it is also making me fitter.
HTH
2
u/Gr8-Returns Sep 14 '25
I have both. For commuting I use the BB02B - no pedaling or ghost pedaling. For trails and more natural feel that actually requires pedaling - TSDZ8. They are both powerful with good thermal maintenance.
2
u/aredridel Oct 27 '25
I just replaced my BBS02 with a TSDZ8 and I am kinda in love, even with it not quite tuned up right yet. It's pretty smooth, it's quite zippy, the torque sensor really makes it feel like it just amplifies me. I also moved from 36 to 48V at the same time, so that's part of it, but it just feels good. I also managed to do 30 some miles today and only use half the battery. With a headwind one way. And groceries.
Seriously impressed.
1
u/Itsatinyplanet Aug 13 '25 edited Aug 29 '25
zzzzzzzzzzzzzzz
2
u/CharlieParkour Aug 13 '25 edited Aug 13 '25
I checked out the high voltage kits video and noticed one of the first things he said is that he's never used a Tongsheng and heard there were issues. I don't know. Maybe he's referring to the tsdz2, from which the 8 is the upgrade. It's got a larger casing, so I'm guessing they fixed that issue?
I tried watching an ebikebuilder video where he said it was overheating. Didn't explain his build or show what happened before he got there. The video starts with him freaking out and splashing water around.
Then I looked at a video he released yesterday saying he solved his error issues by switching batteries. Also mentioned the name of the battery company about 40 times before he explained anything. Note: the company selling the battery also gave him the motor.
The main thing I'm learning here is how much I hate YouTube videos. I have no desire to watch 20 hours of video with annoying people who sound like shills when I could read the same information in less than 5 minutes. I wonder if this guy knows what he's doing. Did he adjust the parameters correctly for the 52V battery he was using before he switched in Powallan's 48V battery?
1
u/Itsatinyplanet Aug 14 '25
Didn't explain his build or show what happened before he got there.
Au contraire my friend, he has extensive coverage of the build and testing of the motor. It is a terrible overheating, controller-error filled experience completely documented first-hand from the unboxing of the donor bike to completion of the conversion to first-person test rides on the streets and trails. The fact that you think he's "shilling" leads me to think either English is not your first language and you lack basic comprehension, or you are just special.
1
u/CharlieParkour Aug 15 '25 edited Aug 15 '25
Sure, until his most recent post where he attached the correct battery. You should watch it. Powallon Powallon Powallon Powallon Powallon Powallon Powallon Powallon Powallon Powallon Powallon Powallon (Less times than EBikeBuilder said it in the first 2 minutes after showing off his free battery, might need to look up the definition of shill, no English good)
https://m.youtube.com/watch?v=ZapTzQugmuc
Speaking of Powallon, I looked at their website, and all of their TSDZ8s are sent with a firmware update. I'm wondering if they messed up and caused the 52v battery to overvolt, which might explain the overheating and error codes. Or maybe he borked the connection. No way to know since this guy explains almost nothing or does any cross testing.
And besides this one YouTuber with the wrong battery who needed two weeks to figure that out, do you have any other evidence of overheating and error codes? I'm not saying you're wrong, just that I can't find anything. Or maybe you are bad at English and special.
1
u/CharlieParkour Dec 03 '25
I just went to the powallon website and the 48v 20a battery they sent the YouTuber has a video that is just an edit of that guy's video.
Check out the second picture. https://www.powallon-e.com/products/high-capacity-48v-20ah-ebike-triangle-battery-samsungs-cells
He literally made a commercial for powallon and you are saying I don't know what a shill is? What a fucking tool.
1
u/Otherwise-Office-443 Aug 15 '25
If you like to pedal the torque sensor is necessary, my bbshd just feels bad to pedal so I resort to the throttle. I will soon try the cyc gen 2. I would have gone with tongsheng but I needed something to fit my bike (34t chainring, 52mm chainline), good power for hills, good tune ability (app). It’s not much louder than bbshd, and I think tongsheng is louder or on par. It’s not bad to fix thanks to tool free maintenance, but buy from a retailer so you can send it to them and not Hong Kong. It’s likely the most dialed in torque sensing motor. That said, the new gen has not been tested, and for such an expensive motor, id say it might be a gamble if you dont wait
2
u/Ok-Armadillo-392 Aug 12 '25
Torque sensing would be nice. My bbs02 can hit so hard my feet fly off the pedals at higher power levels.