Mono

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Everything posted by Mono

  1. sure, have done this before, the InMotion V8 and the Gotway MCMC2s don't react to the on/off button when pressed while driving. I didn't need padding up to find this out, including the case when I drove so slowly that the above didn't apply . BTW, one can do the experiment as well by just pushing the wheel but not riding it.
  2. You can easily see why this is probably not the case by looking at the limit when speed goes to zero. At zero speed, all the wattage as to be converted to heat, because kinetic and potential energy remain the same.
  3. With any half decent design, failure of the power button itself will not turn off the wheel. The power button may give the turn off signal, but the wheel actually only turns off if it isn't spinning.
  4. I like the simple control nobs, but this charger seems to be pretty noisy, so therefore I rather prefer my two completely quiet 84V chargers plus charge doctor.
  5. It may help to explain your host that charing will cost them (far) less than 10ct per hour on their electricity bill and you will of course pay...
  6. efficiency is however in favour of higher speeds.
  7. take out the inner part of the valve (you need a tool for this, it comes with some sealants which are applied after taking off this part of the valve), clean the valve, and put it back in.
  8. The main disadvantage of the V8 I could think of (in particular for a beginner or teenager) is that the shell cover is much easier to break than on other models I have seen. It's not a wheel one can crash relentlessly in the woods. Contrary what is written in the review, it doesn't have Bluetooth Hi-Fi Speakers, to all I know.
  9. The only problem is that the old Gotway models have the reputation to be quite reliable and even almost unbreakable. No improvement there. The problem in this case is rather not any new technology, but a rather irresponsible or careless way of design and manufacturing.
  10. I think it is due to their last minute change from a 1.95 tyre they had on the early prototypes to a 2.125 tyre on the sold wheel. I'd rather deal with some scraping than going back to 1.95 though.
  11. Ich besitze zwei Wheels bei denen das der Fall ist und würde mir kein drittes kaufen nachdem ich weiss dass es auch anders geht.
  12. How do I know that this number is comparable with specifications given for other wheels? I have considerable doubts that it is.
  13. Using the kill switch to place the wheel on the fender while it is turned on? I can't turn on the wheel while placed on the fender, but it stays on for some time if placed using the kill switch.
  14. I wonder about your technique to get up (small) curbs. Obviously, jumping is an option. In this case, how do you time a jump? Using constant speed, or decelerating before the jump? Does anybody do this on a regular basis with traffic around? What are the alternative, less "violent" ways that help going over curbs? My current state of affairs is to soften the knees as much as possible and/or even deliberately bent them at the point when I expect to hit the curb. It doesn't always feel terribly safe though (yet).
  15. There must have been Freud in play hmm, I let strangers try all the time. I do say no sometimes, but more often I say yes. And I probably would do it even if I had paid 1700 bucks. Didn't you buy yours used?
  16. IIRC, there are inconclusive reports on whether Li-Ion batteries may gain capacity within the first few charge cycles. I wouldn't bet either way. I can squeeze a little over 400Wh out of the battery (measured with the charge doctor, CD), and see around or below 11Wh/km consumption with 80kg payload if I take it easy. With lots of acceleration and deceleration it becomes typically rather 17Wh/km. From these numbers I would have no way to conclude that you have a defective battery.
  17. It seems you make an equivocation of the word problem using it with two different meanings in the last sentence. The first refers to the challenge ("problem") of engineering a reliable product and the second to failures ("problems") we have observed in existing products. These are different things. We can observe many failures of a product which poses very little engineering challenge, for example due to a mistaken specification. You really disagree that it is a much much much simpler to replace a weak axles with a more sturdy one than to have an entirely new motor design with a much larger hole in the middle? Strange.
  18. There is no reason that an axle cannot be larger than 18mm and there is also no good reason that an 18mm must break, other than lazy or careless engineering, IMHO. I believe the design with the hole in the middle makes the choice of bearings more difficult, at least in practice. Bearings are the only part of an EUC which needs to move (smoothly) under full weight load. With the hole in the middle, the bearing becomes much larger and (much?) heavier and the bearing seal needs to cover a much larger area with higher speeds against each other. This engineering problem might have a reliable solution, but it will not come from engineers who cannot even design a reliable axle.
  19. I guess so, but it makes all the difference whether "enough times" means 1000 or hundred million. We can build metal bridges which live for decades and withstand millions of vehicles traveling over them. I don't think that the axle of an EUC needs ever to be a point of failure. If it is, it was IMHO just lazy or careless engineering.
  20. For my use case, I wouldn't actually know any superior alternative on the market, so at this very point in time I would buy it again immediately. Riding control is stiff and excellent, it's comparatively light and thin. If I had the choice, I wouldn't even know whether I wanted rather be able to fit a 16x2.5 tire (instead of 16x2.125) or the wobble go away, if I would have to chose between these two.
  21. This is indeed key. Another way to put it: I let the wheel climb on its own with as little as possible rider weight on it. Similarly for down curbs but "in opposite order": if time allows I bend the knees in advance, ideally such my own CoG practically only changes horizontally while going down the curb (knees remain soft and never fully straighten). This, I believe, removes a lot of strain from the axle, probably at least halving the additional stress.
  22. you may want to try google with "site:http://forum.electricunicycle.org" as additional search phrase.
  23. So what happened?
  24. Depends on the step size. Above 10cm I step off, depending on the situation possibly also for smaller curbs as well. Only for fun and only a few steps down. no. Please, do not speed up, don't, ever. Yes, I slow down, of course. When I fail I just step off. Has worked so far, but the failure rate is getting close to zero. What can I say, I do it, so why should I recommend against it? I am happy with what I do. Good one, should have been the first question
  25. Do you have personal experience with a valve actually failing due to dirt? I have been riding motor bikes thousands of km through mud and through deserts, but I cannot remember to have assigned any importance to the valve cap. I also cannot remember any of my companions caring to have a cap on their valve. As always, it could be just my memory that doesn't serve well EDIT: as there seems, on the other hand, to be no good reason to dump the cap, I do have a cap most of the time.