Request for V12 reviewers: is the V10/V11 alarm safety flaw the same on V12?

[supercurio]

Hi guys!

From the documents released today, I'm considering the Inmotion V12 as my next wheel.
(currently: Inmotion V10F + Kingsong 16X)

However the the V10, V10F and V11 have a flaw in their alarm design, preventing it to ring more often than every 5s.
And so much can go wrong during 5 seconds, it's enough to go from standing still to almost max speed.

It's a really bad flaw that can lead to over power or over-lean of the the wheel during the 5 seconds the alarm is muted, due to any combination of:

• acceleration
• speed
• incline

It was identified by analysing a V11 crash and I reproduced it for demonstration purposes in this video:

 

Now, the V12 goes up to 70 km/h. An overlean at this speed is much more dangerous than the moderate 35+ km/h of the V10F.

Please 🙏, anyone testing the V12: can you check (safely) if this issue is fixed?
I'll be happy to help with testing methodology 👍

References:

1. Post about this video
2. EUChristian V11 crash due to this issue

 

[Ádám Szitás]

That is already said to be in the next V11 firmware (constant beeps no delays) so I'm sure this is not relevant anymore

[xiiijojjo]

I would take the "70km/h" with a grain of salt.

First consider that the advertised top speed of any wheel is always greater than actual speed and sometimes by a big margin.

In the forum post with leaked specs and pictures from one of them you can clearly see the display on the v12 show a "top speed limit" setting with it being maxed out at 60km/h

So 70km/h is probably more so cutout speed... Or just a figure - just know i have no experience with Inmotion products and more particularly their firmware so I'm probably not the best to predict true top speed.

Gotway "top speeds" on the spec sheets are mostly cut-out speeds or even higher than cut-out speeds depending on variables. So whenever i see spec sheets i just automatically assume (to err on the side of caution) that whichever speed is on there is most likely >cut-out for most people/riding conditions.

But from those bits of information I'd wager a bet that 70km/h is just a figure for hype that only a 40kg, 4 foot Chinese person could achieve which perfect tire pressure, smooth and freshly hardened asphalt, wind in his back and 100% battery on a perfect demo wheel potentially with firmware widening the top speed margin by 5-10%

I think 60km/h might either start pedal tilt-back or something equivalent of Gotways 80% beeps for that same Chinese person. 

I don't know if Inmotion has built-in 1st and 2nd alarm like gotway or something similar but i would imagine most of whichever alarms on there would go off way before hitting 50km/h

I don't wanna shit on this wheel hell i don't know anything about it beyond leaks, which mostly hold water on this forum when they pertain to new wheel releases. I just don't want people to already tunnel vision on that 70km/h figure as top speed figures in my memory has always been inflated and when crazy people like Vee on youtube (who btw weighs about as much as that aforementioned Chinese person) then finally purposefully make the eucs cut-out they discover the "true top speed"... Well it's not that simple there are variables as mentioned earlier.

In any case i used to ride the beep, and after some life experience, perspective and a few visits to the hospital i must now vehemently dissuade this type of behavior. Riding fast is not a problem, i have mastered riding just below the beep so i never hear it but so that i still have high speed + headroom incase of a pothole or some unforeseen aspect that could spell disaster. 

The Gotway RS was advertised as an 80km/h wheel, aforementioned Vee to the best of my recollection cut-out at 79km/h being an incredibly light rider, mine from new gave me "80% beeps" at 69km/h (100% battery) but i know for a fact that i will cut-out at a lesser top speed than she did be it 78 or 76.. Doesn't really matter to me. I don't need those last 5-10km/h and if you DO NEED that there is one simple, superior solution: Wait until a "120km/h" wheel comes out and ride it worry-free at 90km/h knowing you have sufficient headroom.

If you think you need to squeeze those last 5-10km/h out of any wheel what you really need is a wakeup call, a hospital bed or the patience to HODL your money and wait for an overengineered wheel. 

On a final note just remember this. A high speed crash can be deadly and people have died from riding on eucs. Even more people have lost the ability to EVER ride (mostly due to no gear). 
If you don't care about your own wellbeing (i've been there) maybe you care about innocent people potentially getting a 25-29kg slug launched into their person at 60-80km/h
And if you don't care about humans in general think about the potential economic costs you could incur in losing ability to labor, having to pay for hospital bills, your insurance fee going up from you being involved in accident, on top of the money needed for repairs of the euc when all is said and done. 

Edited March 16, 2021 by xiiijojjo

[supercurio]

4 hours ago, Ádám Szitás said:

That is already said to be in the next V11 firmware (constant beeps no delays) so I'm sure this is not relevant anymore

Happy to hear that a V11 firmware would carry this improvement, it would mean that @Inmotion Global understood the issue.
Do you remember what was the source?

I'd expect a fix for the V10/V10F as well, since it has an identical issue.

[Ádám Szitás]

2 minutes ago, supercurio said:

Happy to hear that a V11 firmware would carry this improvement, it would mean that @Inmotion Global understood the issue.
Do you remember what was the source?

I'd expect a fix for the V10/V10F as well, since it has an identical issue.

 

[Freestyler]

Yeah, the alarm thing seems that it will get fixed in the next version.

Also about the tiltback being subtle at max speed, I changed my position.

I actually like the fact that's it's so subtle and it does not startle me. I don't need it to be violent at such high speeds, especially since I know the the V11 has a lot of buffer as far as speed is concerned and excessive torque is not requested.

[supercurio]

Thanks @Ádám Szitás and @Freestyler, appreciated!
I'll try to reach @Inmotion Global Liam to ask for a V10F firmware fix then.

It's a promising sign regarding the robustness of safety mechanisms of the V12 

Still worth checking for the reviews if things work as expected!