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Showing most liked content on 06/23/2019 in all areas

  1. 11 likes
    I'm not too worried about a delay. Rather they take their time to get it right. I'd take quality control over production speed anytime.
  2. 11 likes
    Gotway: "LOL we put glue on our mosfets!" Kingsong: "LOL see you in 2020!"
  3. 7 likes
    I had the wheel longer than Chris and was able to get some solid riding time in; may be 50 miles? so I'll try to do a quick summary: Problems- the high speed lumps, at top speed, around 28mph or above, the wheel has a slight shake, it feels like you are running across a series of painted lines on the road. This was an improvement from before bust still noticeable. The firmware still feels beta, the battery level stick at 100% so I have no idea how much power I have left. haven't dug in to see if there are any other weirdness. The wheel- This is the most fun wheel I have ridden so far. There I said it, I love the Z10 more, however it is a wild ride and you need to constantly be on top of it. The 16x have the same sense of weight and stability in turns but is completely predictable. Acceleration and braking both feels smoother than the Z10, more subdue which is both a good and bad thing. The wheel is dead quiet, in a quiet room I can actually hear the hum when I turn on its head light. no one will know when you come up behind them. You can ride at the top end (31mph), but I feel slightly iffy doing it. However I feel more confident doing so than when I am riding the Z10. It is very very maneuverable, carving feels great on this wheel. the body feels very comfortable between your legs, I like to keep my right leg bend with my right knee right up against the body, works very well with this wheel. They weren't kidding about the trolley handle, compare to the handle on this, the one on a z10 is like a random tree branch you picked up on the road and duct taped to the wheel. Head lights works very well, I don't like lights in general but the angle and spread works fine. The placement of the LED strip is not ideal; its right on the corner and unprotected, if the wheel takes a tumble there's a good chance the lens will get scratched, cracked or what have you. Not sure about real range, since I can't see the battery level, but I rode the wheel hard today 30 miles including up and down the tall Queens borough bridge twice and no throttling at all. Have to say this again, this is a fun FUN wheel to ride. Will try to answer any question anyone have; wheel is going to Tishawn next.
  4. 7 likes
    Don't give too much value to the theoretical maximums of the datasheet. They're kinda like the range-values of wheels, you can use them to compare one mosfet (wheel) to another, but in real-life, other factors limit you to much lower numbers (at least in continuous current / power dissipation). TO-247 can take more abuse thanks to a much larger contact area for heat dissipation (at least when properly connected to a heatsink or whatever for dissipating the heat). The more important numbers are the Rds(on) (internal resistance when fully conducting) and the thermal resistances (which are usually the same for the same casing), but you'd need to know the average current / power dissipation and heatsink thermal resistance to ambient to calculate anything more meaningful.
  5. 7 likes
    @Jason McNeil, no thermal paste when using the thermal conductive pad. When the thermal paste is used where no electrical isolation is required, only the minimal amount is required to fill any air gaps in the irregular surfaces even though they look flat and smooth. One simple way of placing the pad in place with the spacers for the screws is to use a made tool for the task that looks like a 6 pronged comb that goes through the holes of the pc board and the mosfet holes and the pad slid on it and then the comb put into the heatsink holes and then slid down to the board. Then place the screws in place with no need for any glue or paste to hole the pad aligned. And if they really want a easy and fast precision assembly, use an assembly that has 2 rows of 6 to assemble all mosfets at once.
  6. 6 likes
    This is what I warned about. Component changes need to be validated. Making late charges for perceived minor benefits is risky. In disciplined product development we go through proto, EVT, DVT, and PVT (mini production run) phases, with testing and review at the end of each phase before we can move to the next. Here's a site that explains the methodology: https://blog.bolt.io/the-illustrated-guide-to-product-development-part-4-validation-1b5ab3aeaf35
  7. 5 likes
    @Jason McNeil let me honestly tell you something.. when I started to get curious about euc (6 months ago.. I'm from Italy) your name was like a form of insurance in all sort of post/feedback/web search I made, whenever I've read "Jason" I felt like I was on the right path to know more about euc! then I found this forum and I knew why your name was a sign of guarantee! sorry for this ot but you have to know how important is what you do in the way you do it!
  8. 5 likes
    All I've read the past year was how Gotway "used to" have worse build quality and quality control issues leading to higher risk riding them, but how they're supposedly getting better now. Even if you can point to a couple examples of Gotway doing somewhat better on one or two recent wheels like the MSX, overall it looks like the old stereotype still remains true of Gotway as a company as a whole. Meaning every new wheel of theirs should be assumed to fall under the old stereotype unless/until after a couple years if that particular wheel proves to be one to add to the small list of exceptions. If you like analogies: InMotion = Apple = behind on specs but good production values/lots of polish (alternatively: shiny and scratches easy ;-) ), clear (if simple) product lines, (at least North American branch of IM) more accountable than most (like Apple, not immune to hardware fsck-ups, but relatively rarer and they have actually done recalls occasionally when necessary) King Song = Samsung = higher specs, overall solid/rugged hardware construction, some weird quirks people put up with for the higher specs and ruggedness (the King Song whine and poor companion app are sort of the equivalent of some of the janky stuff Samsung has done with their UI skin over the years), sprawling product lines but with at least some order behind it, more accountable than most other Asian hardware manufacturers but not quite all the way/still dealing with an Asian business mentality which can bite you on occasion Gotway = no-name Asian Android OEM's = rush to cram in the highest specs without concern for much else, often shoddy construction, no cohesive product lines or naming conventions, no accountability -- at the end of the day, yes you can get a no-name Asian Android handset with the most cpu cores and/or the highest clock speeds, but you have to be willing to live with a lot of cut corners for it (although at least if such a phone overheats/fails it won't throw you to faceplant on the pavement) Of course in all cases, the two universal truths remain: While we are all relatively early adopters, you at least don't want to be an "earliest" adopter (what I am hereby declaring the "let Marty Backe fall down first" principle ;-p ) Everyone worships ewheels.com and Jason for very good reason, as the only surefire 'insurance'/protection against EUC manufacturer shenanigans. __ (For reference, here is an excellent write-up on the history of wheel issues by the various manufacturers: )
  9. 5 likes
    Guess who's about to get a lot more riding time
  10. 4 likes
    Another point I forgot to mention last night: when the first tear-down photos were posted by EcoDrift, I wrote a list of questions about the Nikola, where the selection of these MOSFETs was at the top of this list. MOSFETs: What type of MOSFETs are used in the Nikola, are they HY brand, what model? Why are they not the TO-247 type found in the MSX? Is there now max current regulation in the firmware? If so, what is this value, 100A max? What sets Gotway apart from other Manufacturers, is that their firmware (as of a year ago) does not perform current regulation—this is why their controllers do not contain fuses. I lobbied pretty hard for the TO247 on the Nikola, but the answer I got was that the Wheel had been extensively tested, that fears of going back to bad old days of controller blowouts were unwarranted... You give me too much credit here. Gotway Engineers are no fools, when contrasted to an organization like Ninebot with their vast resources, Gotway have usually been open to reason, & back up their products. This may be true, we need to commission a test rig for stressing the controllers under various loads in test these principles experimentally. I could be wrong, but I suspect that with a drop of efficient thermal compound on the conductive metal surface, will make an dramatic effect on shuttling away heat. In most applications these components are probably not stressed to anywhere to the same degree with as on a Wheel charging up a hill on a hot day, where the standard insulating pad is adequate. Also a special thanks to @Marty Backe & @Phil McLaughlin for their efforts with this investigation.
  11. 4 likes
    I think this is good thread for anyone considering, waiting, or being disappointed at the Z10. If I would’ve bought the Z10 (without trying), my feelings would likely be somewhat similiar. Seeing that others have the same issue, and that it requires learning a new riding style would definitely help. That said, as most top wheels at the market currently, the Z10 does seem to have it’s share of manufacuring issues. Perhaps even more than average.
  12. 3 likes
    Edit:  there are now "official" statements from Gotway (on Facebook) that acknowledge the problem and that new control boards will be available for all owners of the original Nikola. Owners are supposed to contact the dealer where they bought the wheel. Link to video of board replacement: ______________________ Unfortionately GW used something like hot glue inbetween the mosfet and the thermal pad as ?assembly help? for the nikola. Until now two cases are known: If one is interested in the "whole story", it starts here with @Marty Backe's report after disassembly of his nikola after the mosfets burned at the beginning ("baby hill") of overheat hill So if you are one of the happy owners of this, otherwise great wheel - PLEASE DRIVE CAREFUL AND DON'T TAKE IT TO THE MAX, DO NOT OVERLY BURDEN THE NIKOLA (for now). Hopefully there will be soon some official statements from GW with a solution to this problem offered! A "small" point, which also came out in this discussion after the fryed mosfets happened on overheat hill is that the reported current is very often very high (much more 90A current warnings than @Marty Backe normaly gets with his GWs) and a very low reported temperature! So it seems one should not wait for a overtemp alarm to be raised - watch the current (spikes?). Or even better - TAKE TIME TO RELAX AND DRIVE COMFORTABLY UNTIL THIS IS SOLVED! Edit: A great teardown and some thermal distribution test Second Part
  13. 3 likes
    I'm getting the impression that " The Great ________ Screw-Up of 20__! " will be something that we still have in 2030, from all manufacturers
  14. 2 likes
    Not me I hasten to add...I love the zeds! Is this guy pissed with his Z10 or what!
  15. 2 likes
    Oh, believe me, I'm under no illusions when it comes to expectations for manufacturers like Gotway and King Song. Even large Chinese contract manufacturers that I've worked with have to be pushed and constantly monitored to stick to the processes and apply effective quality controls. What I'm pointing out are the best methods we know of to develop and manufacturer consumer products that have low chances of failing at unacceptable rates, and in the case of a vehicle will be predisposed to being safe. While we continue to buy for these cowboy operations, we should not expect first class outcomes. We should not be surprised when our wheels throw us under an 18-wheeler! The situation isn't going to change over night, or even in two years, but continued consumer pressure can make a difference. Once these companies start to realise that there is value in their brand that needs protecting, they will begin to look at ways to minimize the risk of damaging their brand with each new product release.
  16. 2 likes
    ok, im seeing the "real" mcm5's with the 800wh batteries for about $1100, and the teslas for only $100 more. I'll probably just save up for one of those...
  17. 2 likes
    We don't know. Gotway need to figure out how widespread this problem is. But there haven't been any failure reports from other 12-mosfet wheels like the MSX or Monster (the upgrade with the MSX board). So either the problem isn't there, or the stronger mosfets survived despite glue. Either way, no need to worry about existing non-Nikolas for now The MSX board has proven to be exceptionally strong and problem-free. Just look at @EUC GUY's car push test - the cabling died before the mosfets! So even if there is glue there, it's still no problem. But of course you don't want glue there, even if it does nothing.
  18. 2 likes
    Ok ok now I have to see this... 🙄 So I took a look at it. I think this guy sadly one of those I refer to as me-culture. I doubt anyone would be able to talk some sense into him. Yes fair enough he is unhappy with the wheel, but like others already what do you expect and how did you get those expectations? That he bought a heavy wheel should not come as a surprise really. This is specified. That he is directed back to point of safe should not come as a surprise either. To my knowledge this is how law say the legal obligation is in most countries. Complains about headlight, well like most other wheels it eacy to have an extra light with you. A building light will only be able to do so much. Anyone riding evening or night time knows this. Especially if you do it in poor street light that interfer with your eyes adjusting to night vision. As for language goes, I would not post a review where only thing that makes sense are swear words. I would make it in native language and the write translation instead. It didn't take long before I had to mute him. Like others pointed out, he calling himself a professional is nothing short of hilarious. Ahh well let's move on.
  19. 2 likes
    This isn't really a thermal paste issue. Just horribly botched production. The design itself seems fine (assuming the smaller mosfets are ok on their own). I'd be worried Gotway fix this fuck-up with another fuck-up (e.g. leaving out the thermal pads and shorting the mosfets with conductive thermal paste). Be 110% sure they understand the problem!
  20. 2 likes
    The more I read this thread the angrier I get. Aside from @Jason McNeil working feverishly on finding a resolution for Nikola’s main board failure has there been any official GW representation on this forum addressing the issue? NO Has GW issued any official written statement regarding the defective mainboard? NO! Other than Jason has GW offered any form compensation to it’s customers such as free repairs or parts or shipping? NO! If you compare the handling of this situation to how Inmotion handled their waterproofing vulnerability issues last year the result is night and day. Can you even imagine GW issuing an official statement like the one IM issued last year? Further IM not only kept their customer’s up to date on the required necessary repairs but also followed through with their promise to pay the shipping costs for the V10F’s return to a repair facility. (redacted email) Inmotion reps also kept me in the loop during my wheel’s repair process which took 10 days. This level of professionalism and customer service should be a norm for all EUC manufacturers. Unfortunately that not the case. I sincerely hope that Jason does not end up bearing the burden and expense repairing his customer’s Nikolas due to a failure of GW’s maladroit technicians.
  21. 2 likes
    As the guy who placed the first order for an 84V Nikola from @Jason McNeil and was riding one from the first batch, I was concerned when @Marty Backe reported the burnout of his control board. After seeing the pictures I parked the wheel until I could find the time to tear it down and inspect the control board (good to have other wheels to ride ). A long career in electronics design and manufacturing made me suspect that this was an assembly "innovation" not a one-off quality slip. Before disassembly my Nikola was riding flawlessly showing no signs of a problem. (By the way this wheel is WONDERFUL!) I had only put about 90 miles on the wheel before parking it. My rides were local rides on paved roads with rolling hills and max speeds of about 26 mph (42 kph). So... not much stress on this wheel. I have attached a picture of my control board that shows glue residue on the MOSFETs but no apparent thermal damage to the board or MOSFETs. As previously commented in this thread the presence of a substance that is a very efficient thermal INSULATOR on the MOSFET heat transfer surface is a big problem. I will be rebuilding the wheel on Monday after correcting the defect and bringing the thermal management up to what I consider an acceptable level. I will post a video of the rebuild for anyone interested in a DIY solution. So far when anyone has looked they found glue. Just another data point...
  22. 1 like
    Nice post, full of personal thoughts @Gasmantle
  23. 1 like
    Yes, I was very sad to hear about his very serious accident. This is the first ride that I've been on where someone broke a bone Best wishes for a fast recover Warren
  24. 1 like
    Ahh she is getting much better. With a few bike bumps but still 😉.
  25. 1 like
    I think the structural integrity of that shell is compromised, and I wouldn't ride that wheel too hard, near traffic or in areas where you can't crash safely. I'd consider replacing the entire shell if you grow attached to the E+ or just upgrade to a newer wheel asap. SpeedyFeet used to stock the inner shell set for the Ninebot One (they are all the same), but the part has been out of stock for a while. You can click this link and add your email address to be notified when/if he ever gets a new batch. I've had success doing that with other NB1 parts from his site.
  26. 1 like
    Haha, she's dangerous with that projectile. Maybe use a leash (I mean of on the wheel of course)?
  27. 1 like
    Joo, hyvä tarkennus... pääsen vajaa 60-kiloisena 840Wh (nimellisesti, todellinen lukema 16S4P 3.5Ah -kennoilla on ~828Wh) akuilla nippanappa 60km rauhallisemmin ajelemalla, lujempaa alkaa 50km kohdalla olla jo hyvin tyhjää, eli sellanen 13-16Wh/km palaa. Tämä siis ihan päällystetyillä teillä, maastoajo syö enemmän. Joskus Firewheelillä tasaisemmin ajelemalla saattoi päästä lähemmäs 10-11Wh/km, mutta jo pelkkä reipas vastatuuli voi nostaa kulutuksen jopa 1.5-kertaiseksi. Kannattanee suoraan laskea että 20Wh/km palaa, vähän vastatuulta ja reippaampaa ajelua, niin voi mennä enemmänkin. @mrelwood:n tyylillä näköjään melkein 30Wh/km Tosin taitaakin olla enempi nopeaa maastoajoa?
  28. 1 like
    Tolla budjetilla voi 50km akkuihin olla vaikea päästä, tosin jos jollakulla joku isompiakkunen pyörä turhana nurkissa pyörii, niin eihän sitä tiedä, 700€ voi riittääkin. Tuppaa vaan nopeeta vaatimaan >1000Wh akut noilla spekseillä
  29. 1 like
    Lhotz: 3000km 16S: 9000km MSX: 6000+km Total: 18000+km in 3 years. Max 65km per day, commonly 40km. Used to clock 1000km in a month, now a bit less. 3 crashes, not counting a few learning tumbles. One crash made my shoulder a bit sore for a few weeks, others were painless. I thank protective gear.
  30. 1 like
    9B : "LOL see you 2030 and bring a powerbank" Inmotion: "Stay in San Diego or wear a raincoat"
  31. 1 like
    I Inmotion V8 is a nice wheel for light people only. It is 3 years old, and even guys that weigh less than 200lbs are having issues with overleaning the V8. KingSong 16S is more powerful and a bit faster, but if you really want to ride 250lbs fast up even moderate hills, you’ll need a 2000W motor and a 1000+Wh battery. It takes a while to learn in which situations the wheel requires the most power. Please ride carefully before learning this!
  32. 1 like
    Bob says hi back! Bob might be more of a cancer cure than cannabis oil, I know I sure do love him and he keeps me laughing. He is beautiful. Kinda getting plump. Hard to believe he’ll be 3 on 10-8. Still as sweet as can be. Might be getting close to 150 now.
  33. 1 like
    Yes iam living in the mother of flatlands, but i wasn’t riding like a pussy Accelerating hard and lots of speed. And my weight is 73kg.
  34. 1 like
    I have seen some of his videos. Although the videos do not seem to be very professional, I find myself agreeing with him most of the time. At least as far as his Inmotion V8 and V10F review goes. What he said about the Z10 can be heard from other users as well
  35. 1 like
    Hallo Gundars, Mir ging es ähnlich, habe vor einem Jahr begonnen, kurz vor meinem 60zigsten. Nach 3 Std.dachte ich auch das wird ja nie was, schon allein die Probleme beim aufsteigen haben mir massig blaue Flecken an den Knöcheln beschert. Aber tägliches Training zahlt sich halt aus und es klappte immer besser. In der zweiten Woche hab ich mich dann auf Feldwegen und Wald an meine alte Laufstrecke gewagt und hab so meine ersten 10 km am Stück gemacht. Heute begleite ich meine Frau beim Joggen ohne Probleme und fange nebenher noch Pokemons beim Fahren 😄 Was mir auch eine grosse Hilfe die ersten Wochen war, ein starkes Gummi Gymnastik Band das ich mir an meinem Griff befestigt hatte und mit einer Hand immer etwas straff gehalten habe, hat mir auch beim aufsteigen und anhalten viel geholfen. Gruß Nobbe
  36. 1 like
    Hallo Gundars, es gibt bestimmt Naturtalente, die das EUC-Fahren am ersten Tag schon ganz gut hin bekommen. Aber ich denke, die meisten werden schon einige Tage geübt haben (2 bis 4 oder auch länger), bis sie einigermaßen flüssig fahren konnten. Ich selbst habe es am ersten Tag relativ gut gelernt, ABER mit einem Doppelrad, dem Airwheel Q5. Das ist wesentlich einfacher und stabiler zu fahren als ein „echtes“ Einrad-EUC. Danach bin ich auf ein Gotway MCM4 umgestiegen und das hat nochmal gute zwei bis drei Tage gedauert, bis ich relativ sicher damit war. Aber wenn man es mal drauf hat ist es wie Fahrrad fahren. Auch nach längeren Pausen kommt man gut wieder hinein und man kann auf Anhieb auch andere Modelle fahren. Das Prinzip ist das Gleiche. Also Minderwertigkeitskomplexe braucht keiner zu haben, der es nicht auf Anhieb hin bekommt. Immer schön üben und dranbleiben, irgendwann „platzt der Knoten“ und plötzlich geht es wie von alleine. Es lohnt sich jedenfalls. MfG Oliver
  37. 1 like
  38. 1 like
    At the very least this reinforces two things for me; 1) Wait until the second or third batch of new release wheels before buying; and 2) Buy from a trusted seller who makes me confident in after-sales service. I'd still buy GW for sure though, following the above rules.
  39. 1 like
    Wow, keep up the great work @Jason McNeil
  40. 1 like
    https://www.indiegogo.com/projects/jyroball-500w-self-balancing-electric-rideable#/?utm_source=SNOWfacebook&utm_medium=Remarketing&utm_campaign=Indiegogo I wanna see @Marty Backes stress test on one of those!
  41. 1 like
    To be more clear: DO NOT BUY A NIKOLA FOR NOW! IF YOU HAVE ONE, YOUR BOARD MAY BE A TICKING TIME BOMB! IT MAY NEED REPLACEMENT OR A REPAIR THAT REMOVES THE GLUE BETWEEN THE MOSFETS AND HEATSINK. You can buy Nikolas again when they come with good boards. I assume they will do that from now on. But beware of older stock, e.g. on Ali. Maybe go for a trusted seller like ewheels as long as it is questionable which stock (good board or bad board) you'll get. The sticker on the board contains a date (e.g. 190601... means 1st June 2019). If it is before now, your board may be affected by the bad assembly method. If it is after now (maybe give it a grace period), Gotway will have fixed the wrong assembly method and the board should be good. (*should* I hope the sticker date is the board+heatsink assembly date, not the production date from some supplier.) We don't know if every Nikola board is affected because all Nikola boards were assembled by the bad worker(s), or if some are good and some are not depending on the worker. Everyone who checked so far has reported a bad board!
  42. 1 like
    Mouth of the Ipswich river at Little Neck - Ipswich with a view of Sandy Point on Plum Island (360 photosphere link) https://kuula.co/post/7kVcM
  43. 1 like
    Learning may need a lot of time. Just keep going. To identify your wheel, post a picture of it.
  44. 1 like
  45. 1 like
    Riding since Nov. 2015. Fallen more times than I can count. Several serious injuries, some my fault, some the fault of others. Two broken wrists, dislocated right pinky finger, sprained left knee, plenty of bumps, bruises, cuts and blood. Good times. I calculate right around 18,000 miles on EUC: X8 clone: ~800 miles KS 14-C: ~1,400 miles IPS Zero: ~1,900 miles Gotway MSuper V3 (#1): ~3,800 miles Gotway MSuper V3 (#2): ~4,100 miles Ninebot Z10: ~ 900 miles (board blew) Gotway MSuper X: 5,247 miles (and counting) I log between 500-600 miles each month, for commuting plus pleasure riding. 50-mile days are pretty common on the weekends, did 70+ a few weeks ago. The tire on my MSX is balder than I am but still grips and rips. It's also uglier than I am but not by much. We've both taken our lumps.
  46. 1 like
    I hope my GF will convince your partners to persevere... Here she is! Doing two coordinated backward turns on the V5F !
  47. 1 like
  48. 1 like
    FYI, the French review of the KS16x has been updated with English subtitles.
  49. 1 like
    He's talking climate change and you're talking lifespan and poverty. What gives? Screw posterity, lets dig/pump it up - cheap oil for the win. No need to worry about the long-term health of the earth. The Rapture is bound to happen sooner or later so who cares what happens? When all the good Christians are whisked away to Heaven, then there will be far less humans on earth which will reduce the overall carbon footprint.
  50. 1 like
    They said the same about electric cars 6 years ago. They thought electric cars were crazy. Look at what is happening now, every car manufacturer is committed to going full electric in the next 5 years. Now Tesla is the best selling car in the luxury class. Eating BMW/AUDI/Mercedes lunch. Those guys now playing catch up. When you think about the numbers they are crazy. To go full electric we would need about 200 gigabattery factories about 5 bil each. You are right, there is a lot to figure out. If they figured it out already we wouldn't be having this discussion. You also may be right about the timing. But you may very see a shortage of gasoline in your lifetime. Hopefully the car manufactures start making more electric cars so that we won't run out of gasoline so soon.
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