KS S20 126V Requirement Debate?

[mrelwood]

 

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I can still overpower it somewhat easily at low speeds on extreme off-road trails. Also the RS19 HT top speed is too low for me to ride it at fast as I want.

 

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I also cannot go 35 MPH up a hill that is only somewhat steep without having to worry about overpowering.

 

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- The current high torque wheels don't even have enough torque for me, and they certainly don't have enough speed

 

Dear @sevin7, I can’t help but to respond to your post with a slightly philosophical tone.

 

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run at 126v peak, then there might be enough torque and speed to satisfy my needs.

I don’t think there will be. At least not for very long. Even if the S20 would be the new king of torque and speed, the way you have determined your “needs” would probably get you accustomed to the new normal pretty soon, and the new goal posts would be right at your fingertips soon enough.

 My first wheel was the IPS Lhotz. 340Wh, 500W, 25km/h, 67.2V. If those were currently the pinnacles of all EUC specs, what do you think you would dream of as the specs that would “satisfy your needs”? Would you calculate that it must be 2200Wh, 3300W, 70km/h… and 126V?

No, you wouldn’t. Because you’d have created your needs with the available specs as a reference point.

Then there’s the physics angle. If you are looking to “satisfy your needs” for power and speed with a self-balancing vehicle, you are fighting a harsh reality. A small or even a moderate bump in current specs is not going to allow you to ride uphill at 35mph without having to be very careful. It also won’t allow you to start riding uphill from behind a rock, or overcome steep obstacles without a good riding technique that conforms to the sudden terrain deformations. For those, even doubling the power of the RS HT might not be enough. Certainly the first “performance wheel” from KingSong won’t be, no matter which voltage they use.
 

Here’s an example: My car doesn’t accelerate anywhere near as fast as I’d like it to. It has an endless list of other shortcomings as well. Yet the weery ol’ bugger satisfies all my needs for speed and acceleration.

 

As for the S20, sure, I see the benefit of the selling points. And I don’t think it will be a very difficult technological achievement. But I really don’t think that it’s going to surpass all current kings of power in all speed categories.

Edited November 8, 2021 by mrelwood

[yoos]

15 hours ago, sevin7 said:

- The current high torque wheels don't even have enough torque for me, and they certainly don't have enough speed
- The current high speed wheels have enough speed, but not enough torque, and they are far too easy to overpower

In addition to what @mrelwood said another problem is that with your weight, height and hill situation you will always feel a lack of torque and speed because your expectations are set by the current standard and you see other people riding faster and conquering steeper hills. Even as wheels become torquier and faster you will still go slower than your girlfriend and daughter and will be the first to overheat or overpower your wheel. I have a similar problem with my brother weighing 20% less than me . This inequality will only end when wheels acquire such power and weight that speed will be limited by safety, fear, and regulations, while acceleration will be limited by traction (judging by this it is entirely possible to make a gearless motor going 160kmh, but I expect a weight of 70kg+ and price of 10000$+ for an EUC with the proper setup). Only then will weight and size of the rider become mostly irrelevant. This is also why current EUC races should eventually introduce rider weight categories like martial arts.