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Everything posted by Mono

  1. Apart from the clearance problem not all 16" tires are alike and match on any so-called 16" rim. The V8 tire is 57-305. The second number is the specification for the rim diameter in mm, which you need to adhere to precisely. So-called 16" tires can be made for rim diameters from 305 up to 349mm.
  2. @Bobwheelwhy dIdn't you post this commercial post in the respective commercial forum section instead of putting the burden of moving the post on the administrators?
  3. V8 Charger Problem - Output Voltage Drop

    Lately yes, but not overall. Apparently not each and every charger experiences voltage drop over time. My older charger has charged estimated at least 30,000 Wh (or about 300h) with only minor or no voltage drop. Maybe some lucky outlier in reliability.
  4. V8 Charger Problem - Output Voltage Drop

    I think they are supposed to show 84V only at the end of charging. I have two chargers. Without load, the older and the newer charger show 84.6V and 83.9V, respectively, but this is not a fully reliable figure and can vary. During charging they show in the beginning the same voltage, which is closely related to the battery voltage (charge status), and the same charge current. The shown voltage increases during charging and only the older charger delivers a final charge voltage of 84.0V, as expected, and fully charges the battery. The newer charger did in the beginning as well, but now, IIRC, never exceeds 83V in the end.
  5. V8 in trouble

    After about 5000km without going easy on my V8 this is what I found when I looked inside: A broken connector for connecting a bunch of low-amperage thin wires from the battery to the main board. This is most likely why I had seen some weird stuff happening with the LEDs lately (on some of them sometimes the lights were not moving or not working at all). A roasted motor connector on the main board, where the latter is decorated with quite some dust and dirt. One of the four corners of the main board cover with which the cover is screwed to the casing is broken away (we can see the screw with some remainder in the next picture upper right). This may have contributed to dust coming in. The origin of this isn't quite clear to me, maybe the connector suffered from a lack of contact due to dirt or corrosion? I got twice the backward-forward shaking which has been observed by others but haven't found a reason for this yet. I have also observed sometimes increased motor vibrations since a while. Time to write off this wheel after only a year?
  6. Uniwheel full specs

    @Uniwheel is there a full specs sheet of the Uniwheel available? I would be interested to know in particular the following: are the claimed 1500W rated motor power or maximal power? What is the number comparable to the classical 350/500/800W motors we have seen on the market? pedal dimensions (length and width) pedal ground clearance tyre dimensions (in particular tyre width) and brand weight of the battery pack are the fenders designed to serve as stands the wheel can be put on freestanding? is a trolley handle available as add-on option or considered to be made available? Or DIY solutions? I am aware that the wheel is supposed to turn off when the rider dismounts, but I often push my wheels also turned off, which is still much better than carrying them even at 11kg. EDIT: the FAQ announces a max speed of 18km/h and unlocked 22km/h, is this still up-to-date?
  7. New Inmotion V10 (V8 Fast)

    The V8 stands on its own (on the fender) when off or while charging. Not super stable, but good enough on plane surfaces. It is also lighter than the KS16, AFAIK, and has a built-in trolley handle.
  8. Fat Boy Unibike

    It's a tough call whether they may possibly lead to faceplants or could possibly prevent them.
  9. Fat Boy Unibike

    just for parking, yes, but not likely to be retracted for riding
  10. Two remarks: Would you chose to ride electric unicycle as a public transportation? Isn't an EUC by definition a non-public (i.e. individual) transportation means unless they were provided by the municipal? There seems also no correct answer if I already have chosen an EUC for means of transportation. If you answered Yes, in what situation? seems to only allow one answer, which doesn't make a lot of sense to me.
  11. V8 in trouble

    Yes, it was/is still working.
  12. You don't use liquid soap or something alike to get the tire off and on the rim?
  13. New Inmotion V10 (V8 Fast)

    I don't see that an engineering challenge is a contraction or impossible, but maybe that's just me

    I admit that I vastly prefer to see mixed vehicle group rides over EUC only rides.
  15. New Inmotion V10 (V8 Fast)

    It's a funny thing though, as this has never been a serious problem on my V8 even once. On the other hand, the wheel of my Gotway, which has more space between tire and shell, got once literally blocked by a piece of wood -> faceplant. I have traveled the same path with the V8 many times without encountering this problem ever. It's of course just a single event, so it might have been simply bad luck, though my impression is in general that the Gotway tends to lure all kind of bigger pieces more easily into the shell.
  16. New Inmotion V10 (V8 Fast)

    Good then. I tend to not update apps as long as I am not desperately missing some functionality you are saying that in the casing of the V8 we can't install a larger tire. That's true, a 2.5" tire can't possibly be fit on a V8. To my understanding the V10 though will have a 2.5" tire, that is, it must have a different casing. There is no contradiction in the fact that we could have space for a 2.5" tire (around 64mm wide) in a casing which is overall 130mm wide. The measures for the V8 are 2.125" (54mm) and 148mm. I understand that space in an EUC casing is precious and that this poses a significant engineering challenge. To gain space while keeping the slim form factor, removing the trolley handle from the inner casing has most likely been the right choice.
  17. New Inmotion V10 (V8 Fast)

    yes, no contradiction there, unless shell and tire width are already alike. sure, but the original InMotion app doesn't. It needs several "clicks" to get there.
  18. New Inmotion V10 (V8 Fast)

    I want, in order of priority: a wider tire, everything between 2.3" and 3.0" I could give a try longer pedals, at least 220mm reduced weight, say below 13kg even less motor vibrations/humming a truly swappable battery as originally announced already for the V8 (say, less than 2 minutes without the need of tools and/or special skills) a (slightly) slimmer shell and hence reduced overall width an USB port an app that immediately connects to the wheel when launched without any further ado to be able to turn the wheel on while it stands on the fender I fear that far from "almost every" of these features will come with the new V10. Am I wrong?
  19. Unicycle maintenance

    I get the impression you never disconnected the motor of the V8 from the main board or you have a different model than I do. On my V8 and on the vids I have seen there is a fourth connector (the white one in the picture) with a plastic lock that one has to unlock to free the motor from the board. I am not confused about the connectors, I just don't like to uncover (also 4 screws) and apply a comparatively strong force directly to the main board to pull these connectors. It's just bad design that one needs to do this to separate the wheel from the shell. It's not a deal breaker and I agree that the power connectors are well secured from getting unplugged unintentionally. That's something.
  20. Unicycle maintenance

    I am puzzled To disconnect the motor from the main board on the V8, we have to remove the main board cover and unplug several rather sticky connectors plugged directly onto the main board. That is in my world of engineering pretty bad design. The main board cover is not even remotely dust-tight and its mounting is mechanically weak (on mine, one mount point broke).
  21. Missing torque due to lack of tire grip is AFAICS not a relevant limitation for EUCs. Wider tires in themselves don't give significantly more torque anyways. A "softer" rubber is the main reason why wider tires may provide more torque. Unless your tire span out you problem was not tire grip. I have had spin outs on mud, snow, or grass, but in none of these cases a wider tire would have changed the lack of grip on the surface. The Ninebot Z has and 18" 4.1 wide tire. Most probably you can't run a thin tire on that low pressure you can run a thicker tire. Or in other words, there are no thin low pressure tires.
  22. Riding fast on an electric unicycle

    Unlike for motorbikes, I don't think that EUCs which can reach a speed of, say, above 60km/h will ever be a popular means of transportation. I could be wrong, but to me it seems that the speed domain of EUCs and motorbikes is different by construction. Disclaimer: also my personal interest in riding EUCs faster than 30km/h is currently zero.
  23. New Gotway MCM5, 14" Picture

    wow, a width of 26.6cm. Just for comparison, the ACM has 20cm, the V8 has 17cm (all including pedals folded). That seems not to evolve in the right direction.