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IPS Zero speed warning

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Hi!

Was curious about during what speed the speed warning started to beep and opened up Waze during the ride. Waze tells around 23-24km/h when the beep starts. This wheel is told to have a Max speed of 30 but the sound make me not want to try to go that fast. Anyone that have tried?

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Beep warnings typically start before the max speed for a reason. The top speed of a unicycle isn't like the top speed of a car. At a certain speed the Engine "stalls" and no longer balances you and you go flying... You don't go coasting to a stop, you'll be flung to the ground. Also, the faster you go the less torque is available to balance you. This means a bump or sudden acceleration could overpower the motor much easier at high speed. So the beeps are a warning - please don't ignore them!

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IPS distributors vastly over-inflate the Zero's specs to sell units.

In my experience, and confirming with others, speed will top out @ 24kph (app speed, 340wH), resulting in beeps. Pushing past that means you'll never know at what point the wheel cuts out (which it will). Plus, the wheel, in my experience, feels less powerful than a 500W Ninebot One E+ (most obvious going uphill), so I wouldn't want to push past the max.

Edited by houseofjob
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In my experience around 23kmh the first slow beeping starts and around 26kmh the faster beeping.

Sometimes I've heard a fixed beep when driving against maximum... as my friend rides a KingSong 14C its hard to keep up...

Then I immediately slow down... to be safe :-)

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@houseofjob

I beg to differ.

IPS has very powerfull motor in their latest wheels.

Fully charged battery: slow beep 23 kmh soft till starts, fast 25, continous beep 27.

There's no point in trying to push it beyond 30, a safety margin is a margin for a good reason.

IPS has good safety logarithms built in: whend the battery is getting too much depleted the beeps will comes earlier, and earlier (at lower speeds) and the speed will be limited more and more, still keeping a safety margin (instead of letting it run so fast the battery cannot deliver enough current any more that it shuts off like some other wheels). So performance depends not only on the motor, but also a lot on the battery. When you buy a wheel, buy the version with the biggest battery your can afford.

To know the max speed of the wheel, do the lift test: switch on the wheel, check the app, lift the wheel in the air, you'll see  the max speed when it cuts out (will be lower when you actually ride on it of course).

 

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Indeed, when fully charged the wheel spins up till 41.5kmh when lifting up :-)

Edited by Jeroenb

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3 hours ago, Jurgen said:

@houseofjob

I beg to differ.

IPS has very powerfull motor in their latest wheels.

Fully charged battery: slow beep 23 kmh soft till starts, fast 25, continous beep 27.

There's no point in trying to push it beyond 30, a safety margin is a margin for a good reason.

IPS has good safety logarithms built in: whend the battery is getting too much depleted the beeps will comes earlier, and earlier (at lower speeds) and the speed will be limited more and more, still keeping a safety margin (instead of letting it run so fast the battery cannot deliver enough current any more that it shuts off like some other wheels). So performance depends not only on the motor, but also a lot on the battery. When you buy a wheel, buy the version with the biggest battery your can afford.

To know the max speed of the wheel, do the lift test: switch on the wheel, check the app, lift the wheel in the air, you'll see  the max speed when it cuts out (will be lower when you actually ride on it of course).

 

@Jurgen Do you own the 340wH IPS Zero then? and what is your body weight? have you owned and ridden regularly a non-IPS, reputable brand's 500W or 800W wheel for comparison?

I'm speaking from owning and riding daily for months this exact wheel, the IPS Zero 340wH, at 77kg body weight, comparing it with another comparable wheel that I previously owned and rode daily for months, the 500W Ninebot One E+.

You can believe me or not, but I stand by what I say. 

The motor is, from my daily riding experience, definitely not the 800W nominal they claim, and I don't believe it's even the 500W nominal that the Ninebot is because it has a harder time going uphill for me than when I was riding the Ninebot.

And at my rider weight, I cannot get the Zero to go above 24km/h app speed before it starts beeping, and there are much heavier riders than me on these forums. A lighter rider on my group rides also confirmed the same 24km/h (he owns the same IPS Zero 340wH). And yes, the lift test is one of the first things I did after purchasing, but that does not tell you the real max speed, only the theoretical limit.

I'm not saying the IPS Zero is a bad wheel, as I do like certain aspects of it. I'm only giving my experience and comparison from regular use.

 

Edited by houseofjob
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I think Jason has mentioned in the past that at least in older IPS's, the "motor rating" was actually the maximum (continuous?) output of the batteries. Could remember wrong, though.

Edited by esaj

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I own the IPS Zero 340wh, I did a max of 27 kmh for testing ( for 2 sec).

I agree going uphill feels less powerful than the E+.

It is a very good EUC from my opinion.

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I've driven to work last monday with an average speed of 23kmh for 10km Including stopping at traffic lights...

The zero does beep continuously fast (warnings) during almost the complete trip... Only when it starts beeping fixed I slow down a little.

I hope I don't force it? As I dont want to get thrown of the wheel ;)

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On 6/8/2016 at 3:35 AM, houseofjob said:

@Jurgen Do you own the 340wH IPS Zero then? and what is your body weight? have you owned and ridden regularly a non-IPS, reputable brand's 500W or 800W wheel for comparison?

I'm speaking from owning and riding daily for months this exact wheel, the IPS Zero 340wH, at 77kg body weight, comparing it with another comparable wheel that I previously owned and rode daily for months, the 500W Ninebot One E+.

You can believe me or not, but I stand by what I say. 

The motor is, from my daily riding experience, definitely not the 800W nominal they claim, and I don't believe it's even the 500W nominal that the Ninebot is because it has a harder time going uphill for me than when I was riding the Ninebot.

And at my rider weight, I cannot get the Zero to go above 24km/h app speed before it starts beeping, and there are much heavier riders than me on these forums. A lighter rider on my group rides also confirmed the same 24km/h (he owns the same IPS Zero 340wH). And yes, the lift test is one of the first things I did after purchasing, but that does not tell you the real max speed, only the theoretical limit.

I'm not saying the IPS Zero is a bad wheel, as I do like certain aspects of it. I'm only giving my experience and comparison from regular use.

 

Hey can you or anyone else tell me how strong the plastic, and over all strength is? especially around the led's. much Appreciated

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On 6/8/2016 at 10:35 AM, houseofjob said:

@Jurgen Do you own the 340wH IPS Zero then? and what is your body weight? have you owned and ridden regularly a non-IPS, reputable brand's 500W or 800W wheel for comparison?

I'm speaking from owning and riding daily for months this exact wheel, the IPS Zero 340wH, at 77kg body weight, comparing it with another comparable wheel that I previously owned and rode daily for months, the 500W Ninebot One E+.

You can believe me or not, but I stand by what I say. 

The motor is, from my daily riding experience, definitely not the 800W nominal they claim, and I don't believe it's even the 500W nominal that the Ninebot is because it has a harder time going uphill for me than when I was riding the Ninebot.

And at my rider weight, I cannot get the Zero to go above 24km/h app speed before it starts beeping, and there are much heavier riders than me on these forums. A lighter rider on my group rides also confirmed the same 24km/h (he owns the same IPS Zero 340wH). And yes, the lift test is one of the first things I did after purchasing, but that does not tell you the real max speed, only the theoretical limit.

I'm not saying the IPS Zero is a bad wheel, as I do like certain aspects of it. I'm only giving my experience and comparison from regular use.

 

Strange, is the limitation you are experiencing not related to (an issue with) the battery instead of the motor?

I'm riding 16" IPS wheels, never the Zero.

I've moved on after the older version of the Lhotz 340Wh (which didn't feel so powerfull, I admit).

I'm currently riding the latest IPS T680+, it accelerates my 110Kg to the 27KMh continous beep in what feels like just a few seconds (never measured).

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25 minutes ago, Jurgen said:

Strange, is the limitation you are experiencing not related to (an issue with) the battery instead of the motor?

I'm riding 16" IPS wheels, never the Zero.

I've moved on after the older version of the Lhotz 340Wh (which didn't feel so powerfull, I admit).

I'm currently riding the latest IPS T680+, it accelerates my 110Kg to the 27KMh continous beep in what feels like just a few seconds (never measured).

The Zero being made by IPS doesn't mean it drives like all other IPS wheels. The original question was concerning the Zero, not any other IPS models.

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