Jump to content


Full Members
  • Content Count

  • Joined

  • Last visited

Everything posted by checho

  1. Mexico positive, however the sidewalks are really bad full of cracks even on the downtown area, it is like riding offroad all the time, however as far as the law it is positive.
  2. In the USA everything is patentable if one has sufficient cash that is one reason the Chinese ignore the US patent system since it has become a joke that is used for making money. All it does is grant a monopoly in exchange for money same thing the mafia does in many countries the mafia calls it insurance but in the end is money in exchange for the priviledge of having a monopoly. Even the Linux OS was patented by some unkown guy who was not the creator, patent which became void after a very expensive legal process by several companies.
  3. My recomendation from best to good, best on top, also the price is in order from high to low, but the gap in price between a ips 350T+ and a e+ is very small only that the e+ is much more available. All of these use the same 16" tire. Ips 350T+, very solid, very reliable, fast 23 km/h, good for hills, control board 12 mosfets enclosed in aluminum case, extremely reliable. 1000w officially and real power could be a little under 1000w since it is not twice as powerfull as a e+, but more powerfull than e+.pedals not good 20cm with groove in the middle. Bluetooth app available. Ninebot e+ , reliable, very fast 22km/h, ok on hills, 12 mosfets on control board, tendency to overheat, official power 500w real power seems higher, good torque but ips 350T is better. Out of these 3 these are the best pedals 22cm a little short but no groove in the middle. Best bluetooth app. Airwheel x8, low price, very solid, very reliable, less powerfull than e+, slow 12km/h, motor 800w it seems it is 800w peak, nominal around 500w. Small battery pack, worst pedals 16cm long with groove in the middle. No bluetooth app. Only get the X8 if low on cash, since the e+ and 350T are both much better, I only recomend the x8 for being cheap, solid and reliable. Not fast. Not long range. Lhotz, kingsong, gotway are outside your price range.
  4. Here is the manual. It is most likely usefull for testesting the motor only not the controller since our controller use a gyro and not a throtle. However for the controller it may work by simulating a throtle by inclining the board. On the motor it will test the phase wires and hall sensors, and also report the hall angle of the motor. It uses 9 volts, it does not sit in between the control board and motor. It should work on 84v motors if the motor is spinned slowly by hand so that it does not generate a huge voltage. It does not test the speed of the motor. I ordered one recently from ebay only $1 more then aliexpress. UsingTheLyenEbikeTester.pdf
  5. The voltage is fairly accurate the reading on the app is off by 1 volt, 1 volt lower, however the watt hours are completly off. If you want the batteries to last do not overcharge if money is not an issue get the satiator which is the best charger that I have seen otherwise use the charge doctor which tries to do the same differently. With the satiator you have complete control of the charge cycle, with the charge doctor you can create a cutt off based on the current being charged to avoid overcharging, and if desired undercharging. The only thing you need to worry on hills is not to overheat the control board, hills draw a lot of power and the control will overheat.
  6. In regards electric bikes they can be very powerfull for example check out qs motor, chromotor, crystalite crown just to name a few. Good controllers allow up to 100v and 150A so definetly they are more powerfull, and the motor winding can be as you need since there are slow and fast winding motors available, they use more watts since they are heavier, but as far as power goes there are very powerfull bikes available, for example the b52 bomber bike. EUC will get there since they are severy lacking in torque and power, the market is concerned with speed hopefully that direction will change since it makes no sence to ride at 40km/h without any torque available.
  7. His unicycle got confiscated by not having insurance that show a deep level of corruption by UK judges and legislators since they are fully aware that unicycles can not be insured and that insurance for unicycles do not exist, if a judge asks for something that he knows does not exist that is beyond the law that is called corruption. In the USA there are similar levels of corruption for example gasoline motorized bicycles in California are legal acording to article 406a, but the article says they have to be registered, and I was told that I had to register the bicycle and get plates, I went to DMV and got a temporary permit since they had no clue on how to proceed several weeks later I get a notification that my registration is void. I go to DMV and I am told by them that only vehicled that have a VIN can be registered, then I ask them what do I need to do and they reply " nothing it is a bicycle and we do not register bicycles, we only register vehicles that have a VIN", well acording to Californiia law a bicycle with a motor of under 2 HP and with an speed under 30mph is allowed on the roads based on article 406a as long as it is registered, but such a registration is not allowed since bicycles do not have a VIN. So this is the case of a junk law in which compliance it is impossible.
  8. The best method is the one used by IPS where the control board is on an aluminum enclosure, not only the aluminum enclosure protects the control board from dirt and water, it also improves cooling. King Song could do the same so even if water got in the case the control board would be protected. Also KingSong needs to oversize their control board since they can not handle the load from the motor properly, all it takes is a heavy rider over 100kg, a long steep incline of over 10 degrees, and a warm day and the control board is history, proper cooling and being able to handle the power from the motor it is a safety concern since when the board is drawing too many amps or its very hot it becomes unreliable.The KS18A it is a very good wheel but like most wheels it needs a better control board.
  9. It has been said by Gotway themselves "it is the same motor". So it is an equal motor, the extra power comes from running the motor at 84V vs 67V. But by being the same motor it is incorrect to say it is a more powerfull motor.
  10. Raptor, where did you get the ks18a dyno tested? How much did the test cost?
  11. Venting air from the top works. I did that as an experiment to fix the cooling problem, but I also added heat sinks under the board, the problem by having the wheel open on top is potential water entry. I hope kingsong makes the top cover with the cooling vents available for sale since the cooling needs to improve on the original ks18a
  12. I would like to add that max safe speed for a heavy rider is lower than max safe speed for a light rider since the heavier rider to be safe will requiere greater torque than the light rider, which means the heavier rider will have to significantly reduce the speed more then the light rider to have more torque at the same power. So a speed that could be consider safe for a 60kg rider could be very dangerous for a 120kg rider on a bad road and a windy day. The minute you go over a bump on the road the extra power is needed otherwise it is a faceplant.
  13. Fully I agree, it is a problem, that hopefully as the market increases someone steps in to sell high end hardware. It happened with ebikes, it is a matter of time for it to happen for electric unicycles. In the case of ebikes it is possible to buy really high end stuff currently, years ago it was not the case, but on ebikes it happened once the market grew and was no longer a tiny market, if the electric unicycle market grows it will also happen with electric unicycles.
  14. On a really powerfull motor it will not be weight dependent since this should never happen the tilt back will kick in much before the cutout, on a weak motor it is weight dependant since the motor no longer has the power to balance and the cutout occurs before the tilt back which is what happens in the last part of the video and the rider only weight 65kg, the cutout would happen much sooner with a 120kg rider since it takes more power to balance a hevier person, and if it is a tall heavy person much more power it is needed, also at that speed the wind resistance begins to play a role. By strong/weak motor I mean the combination motor and battery pack. Be safe buy wheels with lots of torque and power, and avoid the max speed.
  15. Yes but the problem with the 40A 12 mosfets from Microworks is that it is not available for sale as a control board it is only available as part of a complete Unicycle. For all practicall purposes that makes the board useless for most of us. They only sell the low capacity 6 Mosfet type rated at 500w. It would be a great board if they only sold it.
  16. I would think the ninebot control board is superior it can do 25 km/h (tiltback speed) at the limit, it will most likely not faceplant you and it can handle 500w nominal power not just peak power 500w. The e+ at 500w is more powerfull than an airwheel X8 at 800w, the reason is that the 500w is noninal power and the 800w is peak power. The e+ control board has 12 mosfets and microworks only 6, and the 30kh/h could be an inflated speed like most things that come from China, so most likely the max speed e+ vs microworks is about the same but with the e+ control board you will be driving with more torque. The only good thing about microworks it seems to be one of the very few control boards available for sale for a reasonable price but it does not seem like a very good controler for a few reasons , under powered rated for 500w motors, not on an aluminum enclosure like IPS the aluminum enclosure not only protects the board it helps in dissipating heat, not universal depends on the motor, good ebike controllers are universal they can be programmed for different motors the only difference with a unicycle controller is the throtle vs the gyro and that for ebikes there is a huge selection of controler at all power levels. Eventually there will be universal, powerfull unycle control boards with an aluminum enclosure for sale but not currently. I have plans to build my own unicycle in future the only reason I do not do it now is the lack of adecuate control boards available for sale. The best control board that I have seen is the IPS and it is rated at 1000w and not easily available for sale, and it seems to have a huge retail price, 4 times the price of microworks.
  17. Climbing slope it is not up to the tester. It is up to the laws of physics. If max rider weight is 120kg according specs, i will assure you that the wheel will not go up a 30 degree slope independent of the tester, starting from the slope it will fail at slopes even less than 15 degrees. It is just not possible, it does not have the needed power. Not picking on IPS but all wheels advertizing a 30 degree slope are missleading since at the max weigh of 120kg they do not come even close, what is more missleading is that all of the unicycles advertize the same climbing angle of 30 degrees independent of the power of the wheel and independent of of rider weight since the max rider weight is always 120kg. I understand it is marketing but lets not exagerate and have the specs closer to the laws of physics and further away from exagerated marketing, the specs should use realistic numbers. Regardless the skill of the rider the laws of physics can not be challenged, a 120kg rider will not go up a 15 deegre slope much less the 30 degree slope starting at the slope, and not using the common trick of gaining a lot of momentum from flat and use the momentum to climb a very steep slope but very short since the momentum will not help for a long slope.
  18. Hi Yueyue, I find the IPS unicycle well desing and are the ones that have the best torque available on the market. However for off road they lack power with heavy riders. I weight 110kg and the most it can handle on hills is aproximetely 12 degrees, I tried a 15 degree hill starting at the hill and it instantly failed to go up, also when riding in the city I failed to see a 5cm bump and it resulted in a faceplant due to lack of power, it will not ride over a 5cm object, many speed bumps are over 5 cm. I own many unicycles the IPS that I have is the IPS121 also called T350+. Something that i really like about IPS is that the control board it is aluminum enclosed. My question does IPS have plans to release sometime this year or next year a heavy duty unicycle with this specs: 2000w or better nominal power (rated power, not peak power), with a wheel 16" or better 18", and width of 2.5".??? The reason i need a 2000w unicycle is not for extra speed it is for extra torque and power for my safety. If there are no plans to release such a unicycle would it be possible to buy the best control boards that you have available with the wiring harness so that I could build my own unicycle? And if yes, what would be the price of the control board in the aluminum enclosure with the wiring harness.? As far as I know there is only one company that sells control boards but they are rated at only 500w too low for my needs. The marketing specs are highly missleading the advertized climbing slope is 30 degrees, and it fails at 15, also the 1000w rating maybe a little inflated since my ninebot e+ it is rated at 500w and the IPS it is definetly more powerfull but not twice the power. I will wait for your replies, thanks.
  19. The reason is simple the ACM is a 16" wheel the Msuper v3 a 18" wheel. Lets assume they are both going up an equally steep hill, the motor for the msuper will ask the control board for more power than the ACM under the same conditions, since the controller it is the bottle neck it is the controller that is subject to more power demand the one that will get burned. In other words a better control board is needed for the msuper v3. A good control board should be able to handle whatever amounts of power the motor asks for, if the control board can not deliver without overheating it is not up to the task and it will eventually burn. The ACM by having a smaller wheel has lower power demands from the control board assuming it is the same motor.
  20. Having the motor and not the control board available it is a problem. Since the controller is not available this motor could only be used as a replacement motor, but by my experience most motors do not fail it is the control boards that usually fails.
  21. I have the ips 121 and it is the best hill climber that I have, it is even better than ks18A at hills, however it can not handle hills over 12 degrees I weight 110 to 115kg, I tried it on a hill 15 degrees and it did not move an inch going up. The ips 121 it is a high torque motor, but it needs more power, however the IPS it is very reliable, it is one of the few unicycles that has the control board enclosed in an aluminum case. Things I do not like about the IPS 121 are the thin wheel which needs lots of air pressure, and make the ride ruff, unlike the ks18 in which the ride is very smooth, and also the very small pedals with the groove in the middle, some of this problems have been solved apparently with the lhotz, but not the lack of power which I believe it is about the same. It takes a lot less than 20 mph to get hurt, about a month ago I fell at about 25 km/h and got a broken shoulder.
  22. Most likely it is the same control board ( thats the part we do not know). The same motor. The battery packs aranged for 20s intead of 16s. So the advantage is clear you gain both power, torque and speed without running into additional costs. The only problem I see is that 50km/h is most likely the cutout speed and someone could get really hurt, but if the motor is rewing for torque this would be great, it would actualy increase safety.
  23. No, that is not what she is saying. She is saying it is the same motor. That means same winding just that the motor is capable of running at 84V. The important question is it the same control board? It is a HS motor, low torque, but by running at higher voltage you gain both power and speed. I would not run at 50 km/h it would be very dangerous, that is why a high torque version of the motor would be great.
  24. The power electronics are usually the choke in electric unicycles, but it does not have to be that way just look at ebikes. But the power rating of the motor is complete irrelevant to the power electronics. For example the ks18a motor is rated at 1100w, and the control board is the choke point if they improve the control board the motor is still a 1100w motor only that you can use now the full pontential of the motor if there is no choke point. The definition of a nominal motor rating is the highest power it can handle under worst operating condition conditions for an unlimited amount of time. Unlimited really means long enough that after a few hours of running the max temperature does not keep increasing. For example if the motor is really 1500w, it means it should be able to run at that power in a place like Arizona several hours without reaching a temperature of destruction, if the temperatures keeps going up faster than it can dissipate the heat it is not 1500w since with suficient time it would get burned.
  25. Is it possible that ks18+ and gotway msuper v3 are using the same motor? That the motor manufacture rates the motor at 1200w, and that KS rates the motor as 1100w while Gotway rates it at 1500w? Someone that has both unicycles could compare, I only have the KS18+. In my personal experience the motor of the KS is very good but the control board sucks, it does not have the proper capacity.
  • Create New...