RolluS Posted September 23, 2022 Share Posted September 23, 2022 (edited) My serial number is BDG20220713xxx. I'll let you know in case of weird noise or failed test. Edited September 25, 2022 by RolluS Quote Link to comment Share on other sites More sharing options...
buffs Posted September 23, 2022 Share Posted September 23, 2022 20 minutes ago, supercurio said: Good catch and bad news, meaning that ZX fixed it on the S22 motor in July but not on the T4. I asked my friend and will report. mine has the same 20220723 date. i have 200+ miles on it, and when i spin the wheel i don't hear any of the click sounds. i suppose the stress test is still something i should consider. Quote Link to comment Share on other sites More sharing options...
supercurio Posted September 23, 2022 Share Posted September 23, 2022 (edited) 23 minutes ago, RolluS said: Here is mine. I'll update you all with the status of the stress test By the way, regarding stress tests: any spin test is conclusive only if it leads to a failure. Passing a spin test doesn't validate a motor. What's necessary is the "landing test", typically: lifting the wheel in the air with your legs, from holding yourself up between two tables or rails. let the motor spin to max speed drop the wheel suddenly to the ground so the motor is stopped instantly by regaining grip. repeat 15 times It requires solid fitness. Power pads with a good lock-in will help immensely to lift and hold the wheel. If a T4 passes this, then it should be fine. Any other way: unknown. (expect King Song to describe similar instructions for their S22 motor test) Edited September 23, 2022 by supercurio 1 Quote Link to comment Share on other sites More sharing options...
Popular Post Tawpie Posted September 23, 2022 Popular Post Share Posted September 23, 2022 2 hours ago, supercurio said: I hope that there will be official testing instructions published soon by King Song Are you by chance talking with BG about this yet? This being a supplier issue, perhaps with two of their customers on their backs ZX will get their act together. I know we expect the final assembler to have caught all the issues, and they should. But this one's a bit sneaky in that motors haven't had stator adhesion problems in the past so it's not the kind of thing that's going to have gotten any special attention at the final assembly incoming inspection point. You usually don't spend much money checking on parts that have been good for ages and ages. Still, it's a reminder to all manufacturers that at some point, what can go wrong, will. They need to continue to do better! 4 Quote Link to comment Share on other sites More sharing options...
supercurio Posted September 23, 2022 Share Posted September 23, 2022 (edited) 16 minutes ago, Tawpie said: Are you by chance talking with BG about this yet? This being a supplier issue, perhaps with two of their customers on their backs ZX will get their act together. It seems like Milli received the messages I sent, liked one, so at least communication is established. Edited September 23, 2022 by supercurio 2 Quote Link to comment Share on other sites More sharing options...
Paradox Posted September 23, 2022 Share Posted September 23, 2022 If history is any guidance now then Begode will just ignore current wheels and make changes only going forward. Current wheels be damned. 2 Quote Link to comment Share on other sites More sharing options...
meepmeepmayer Posted September 23, 2022 Share Posted September 23, 2022 43 minutes ago, supercurio said: It seems like Milli received the messages I sent, liked one, so at least communication is established. Are you in contact with ewheels? Or know of someone who is talking to them about this? If anybody can put pressure on manufacturers, it's ewheels. 2 Quote Link to comment Share on other sites More sharing options...
supercurio Posted September 23, 2022 Share Posted September 23, 2022 @meepmeepmayer yes I just tipped @Jason McNeil about it via email as well, same way I did just before the S22 would be shipped in the US, because I saw that eWheels is taking preorders deposits at the moment. 1 Quote Link to comment Share on other sites More sharing options...
Biggane Posted September 23, 2022 Share Posted September 23, 2022 https://imgur.com/a/NFLPlsY Here’s a pic of my motor @supercurio Quote Link to comment Share on other sites More sharing options...
KNZ Posted September 23, 2022 Share Posted September 23, 2022 Mannn... I'm probably making this out to be far worse than it actually is but stuff like this makes me want to give up the hobby altogether. Can't even have peace of mind without worrying constantly. 😕 Quote Link to comment Share on other sites More sharing options...
RolluS Posted September 23, 2022 Share Posted September 23, 2022 (edited) I've made the "pendular" test. No problem. I don't wan't to do the harsh stress/ageing/destructive test until I'm inclined to from Begode. My decision. I won't exceed 40km/h until then My safety gear. Anyway, I've commuted 8km and it was very pleasant ! https://euc.world/tour/613996704875180 I was 2 year from my last EUC trip, so consider me as a noob. I enjoy it, I have to be used to the weight (I come from MTen3), but I've been tailgating a quick bicycle and enjoyed my commute this evening Edited September 23, 2022 by RolluS (typos...) 2 Quote Link to comment Share on other sites More sharing options...
Popular Post Archee Jan Bloch Posted September 23, 2022 Popular Post Share Posted September 23, 2022 5 hours ago, Biggane said: I just received mine and it seems to have this issue. There’s a noise coming from the motor that sounds like metal rubbing on metal: https://imgur.com/a/cOqNRA7 I just talked to Factory, they are asking you not to ride it. . Sometimes mid next week they should get new batch of T4 motors and will test is before sending the replacements out.. Contact your local dealer with motor number and tell them you are affected by this.. Make sure the dealer communicates with either Milli or Levi (Fei) about this I had my client T4 also having this issue however while there was a slippage, the mainboard didn't burn down, it only shows Hall censor error.. when putting different motor in (just hall sensor) the warning is gone 3 3 Quote Link to comment Share on other sites More sharing options...
Popular Post meepmeepmayer Posted September 23, 2022 Popular Post Share Posted September 23, 2022 29 minutes ago, KNZ said: Mannn... I'm probably making this out to be far worse than it actually is but stuff like this makes me want to give up the hobby altogether. Can't even have peace of mind without worrying constantly. 😕 These are sometimes horrible, but specific problems that you can take care of with a specific solution. The nature of self-balancing vehicles means than any hardware failure is a crash, but the number of failures that are unrelated to any specific known issue (bad motor like here, bad board batch, bad specific firmware, ...) is extremely close to zero. Also, first batch is first batch, at this point I consider first batches to be for enthusiasts only (or people who can take the money loss). But it can be exhausting, nobody is denying that. Same when you get a new wheel (maybe your first) and it has some issue right away! You just want to ride, and then this. Extremely demotivating. You have to power through, maybe with some effort, until the good times come. But they do come. And if you and your wheel aren't affected by some specific issue, there's no reason to worry. 4 1 Quote Link to comment Share on other sites More sharing options...
RolluS Posted September 23, 2022 Share Posted September 23, 2022 (edited) The fun fact is... If I weren't reading this forum I wouldn't be worried about this issue, and would be riding (or crashing) freely. Edited September 23, 2022 by RolluS 1 Quote Link to comment Share on other sites More sharing options...
Popular Post enaon Posted September 23, 2022 Popular Post Share Posted September 23, 2022 (edited) 7 minutes ago, RolluS said: The fun fact is... If I weren't reading this forum I wouldn't be worried about this issue, and would be riding (or crashing) freely. faceplant is bliss Edited September 23, 2022 by enaon 4 Quote Link to comment Share on other sites More sharing options...
Archee Jan Bloch Posted September 23, 2022 Share Posted September 23, 2022 29 minutes ago, RolluS said: I've made the "pendular" test. No problem. I don't wan't to do the harsh stress/ageing/destructive test until I'm inclined to from Begode. My decision. I won't exceed 40km/h until then My safety gear. Anyway, I've commuted 8km and it was very pleasant ! https://euc.world/tour/613996704875180 I was 2 year from my last EUC trip, so consider me as a noob. I enjoy it, I have to be used to the weight (I come from MTen3), but I've been tailgating a quick bicycle and enjoyed my commute this evening we did about 160 miles on it before it occurred even though Go George Go had slippage on the hill, at the end of the day the wheel completely stopped balancing.. see my message below.. all the motors that are shipped with 1st batch of T4 are likely affected and need to be replaced. 1 3 Quote Link to comment Share on other sites More sharing options...
RolluS Posted September 23, 2022 Share Posted September 23, 2022 1 minute ago, Archee Jan Bloch said: we did about 160 miles on it before it occurred even though Go George Go had slippage on the hill, at the end of the day the wheel completely stopped balancing.. see my message below.. all the motors that are shipped with 1st batch of T4 are likely affected and need to be replaced. Thank you very much for the information. I will check with my seller 1 Quote Link to comment Share on other sites More sharing options...
supercurio Posted September 23, 2022 Share Posted September 23, 2022 24 minutes ago, Archee Jan Bloch said: I just talked to Factory, they are asking you not to ride it. . Sometimes mid next week they should get new batch of T4 motors and will test is before sending the replacements out.. Contact your local dealer with motor number and tell them you are affected by this.. Make sure the dealer communicates with either Milli or Levi (Fei) about this I had my client T4 also having this issue however while there was a slippage, the mainboard didn't burn down, it only shows Hall censor error.. when putting different motor in (just hall sensor) the warning is gone Thanks @Archee Jan Bloch for the quick reaction, and I have to say: promising feedback from Begode too! I'm guessing they got a few distributors asking about this at the same time. Nice 👏 1 Quote Link to comment Share on other sites More sharing options...
Popular Post Kevin Graehl Posted September 23, 2022 Popular Post Share Posted September 23, 2022 2 hours ago, supercurio said: By the way, regarding stress tests: any spin test is conclusive only if it leads to a failure. Passing a spin test doesn't validate a motor. What's necessary is the "landing test", typically: lifting the wheel in the air with your legs, from holding yourself up between two tables or rails. let the motor spin to max speed drop the wheel suddenly to the ground so the motor is stopped instantly by regaining grip. repeat 15 times It requires solid fitness. Power pads with a good lock-in will help immensely to lift and hold the wheel. If a T4 passes this, then it should be fine. Any other way: unknown. (expect King Song to describe similar instructions for their S22 motor test) I know your intent is goodhearted, but to anyone reading this. DO NOT DO THIS TEST. This is not endorsed by begode, or AlienRIdes.com We are in contact with begode right now, and are identifying how we as a distrubutor are going to take care of our customers. Just give us a few days (tops) to have an official response. I'm more active on facebook but you're free to text me 415.341.2281 with any quick questions.https://photos.app.goo.gl/qdUMBzEHxXTXa8fs7 . Here are some photos/ and a video of t4 vs S22. Kevin Graehl CTO AlienRIdes San Francisco, CA 415.320.1495 5 1 2 Quote Link to comment Share on other sites More sharing options...
RolluS Posted September 23, 2022 Share Posted September 23, 2022 I had a slight noise, I think it was because I did not removed the plastic protection on the inside side of the battery boxes. I removed it now, I'll see if the noise is still there. Quote Link to comment Share on other sites More sharing options...
RolluS Posted September 23, 2022 Share Posted September 23, 2022 (edited) 23 minutes ago, Kevin Graehl said: I know your intent is goodhearted, but to anyone reading this. DO NOT DO THIS TEST. This is not endorsed by begode, or AlienRIdes.com We are in contact with begode right now, and are identifying how we as a distrubutor are going to take care of our customers. Just give us a few days (tops) to have an official response. I'm more active on facebook but you're free to text me 415.341.2281 with any quick questions.https://photos.app.goo.gl/qdUMBzEHxXTXa8fs7 . Here are some photos/ and a video of t4 vs S22. Kevin Graehl CTO AlienRIdes San Francisco, CA 415.320.1495 Interestingly, I have the almost same serial number, just 2 last digits are differents.. Please let us now and if you can, tag me so I don't miss the information. Edited September 23, 2022 by RolluS Quote Link to comment Share on other sites More sharing options...
Archee Jan Bloch Posted September 23, 2022 Share Posted September 23, 2022 3 hours ago, buffs said: mine has the same 20220723 date. i have 200+ miles on it, and when i spin the wheel i don't hear any of the click sounds. i suppose the stress test is still something i should consider. Make sure you don't overtorque it uphill when the slippage of the magnets happens this would initiate the issue 2 Quote Link to comment Share on other sites More sharing options...
Archee Jan Bloch Posted September 23, 2022 Share Posted September 23, 2022 3 hours ago, supercurio said: By the way, regarding stress tests: any spin test is conclusive only if it leads to a failure. Passing a spin test doesn't validate a motor. What's necessary is the "landing test", typically: lifting the wheel in the air with your legs, from holding yourself up between two tables or rails. let the motor spin to max speed drop the wheel suddenly to the ground so the motor is stopped instantly by regaining grip. repeat 15 times It requires solid fitness. Power pads with a good lock-in will help immensely to lift and hold the wheel. If a T4 passes this, then it should be fine. Any other way: unknown. (expect King Song to describe similar instructions for their S22 motor test) I believe someone did the test on KS .. and 10 out of 10 failed this but to be honest, I almost thing that every wheel will fail this 1 Quote Link to comment Share on other sites More sharing options...
supercurio Posted September 23, 2022 Share Posted September 23, 2022 (edited) 1 hour ago, Kevin Graehl said: I know your intent is goodhearted, but to anyone reading this. DO NOT DO THIS TEST. This is not endorsed by begode, or AlienRIdes.com We are in contact with begode right now, and are identifying how we as a distrubutor are going to take care of our customers. Just give us a few days (tops) to have an official response. I'm more active on facebook but you're free to text me 415.341.2281 with any quick questions.https://photos.app.goo.gl/qdUMBzEHxXTXa8fs7 . Here are some photos/ and a video of t4 vs S22. Kevin Graehl CTO AlienRIdes San Francisco, CA 415.320.1495 Hey @Kevin Graehl! Thanks for stepping in and very happy that you're in a position to contradict my suggestion by providing a better answer, instead of being left only with the option of a ridiculously demanding and difficult validation test to run by yourself. I'm very impressed by how quick this is moving forward this time, probably thanks to Begode who's answering in an effective way your requests. To me, all these motors should be replaced by the OEM instead of relying on owners or dealers to try to validate them one by one. No doubt about that. 👏 1 hour ago, Archee Jan Bloch said: I believe someone did the test on KS .. and 10 out of 10 failed this but to be honest, I almost thing that every wheel will fail this That was eWheels on their S22 batch, with a test that's not as demanding. But even the one I described here: it is supposed to be harmless to wheels without defects. You'll see why I say that soon. Edited September 23, 2022 by supercurio 2 Quote Link to comment Share on other sites More sharing options...
Popular Post bird Posted September 23, 2022 Popular Post Share Posted September 23, 2022 1 hour ago, Kevin Graehl said: I know your intent is goodhearted, but to anyone reading this. DO NOT DO THIS TEST. This is not endorsed by begode, or AlienRIdes.com We are in contact with begode right now, and are identifying how we as a distrubutor are going to take care of our customers. Just give us a few days (tops) to have an official response. I'm more active on facebook but you're free to text me 415.341.2281 with any quick questions.https://photos.app.goo.gl/qdUMBzEHxXTXa8fs7 . Here are some photos/ and a video of t4 vs S22. Kevin Graehl CTO AlienRIdes San Francisco, CA 415.320.1495 Thanks for sharing this, I just picked up a T4 from AR and look forward to seeing this issue being addressed. 25 miles in and no issues so far with a 20220723 motor, but that's pretty early to make any judgements. 4 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.