EUC Overlean/Cut-out. What, why, when, how?

[@donfly-z3u]

Thank you, a very valuable video that makes you aware of the danger. It's better to know this and always take the limit into account than to fall flat on your face and end up in the emergency hospital. Like me. I had to go through a very difficult operation and have a long period of rehab ahead of me. I fell at jogging speed. And I wore full protective gear. But unfortunately I encountered a concrete obstacle.

[@mrelwood_EUC]

Oh shit, that sounds horrible! I’m so sorry for what you have gone and are going through. Did the protective gear fail, or was it partially insufficient? Or did you fall into the obstacle and not because of it?

[@thegreatcornholio8028]

Finally got the main ingredients all together and made it easy to understand.

[@supercurioTube]

Fantastic once again! It might be the first video that puts everything together in a comprehensive manner, including voltage vs back-EMF.

[@mrelwood_EUC]

Thank you so much, Supercurio! Let's hope that this helps in educating riders a bit.

[@ullle66]

THANK YOU…..i cant repeat it often enough! Thank you for this perfect explained video! Even with Back EMF mentioned. Just ON POINT!

[@mrelwood_EUC]

Thank you so much Ullle for the kind words!

[@haroldsmith45302]

Good video, thank you. The example graph at 03:35 explains much. As a matter of basic safety, EUC manufacturers should be legally required to publish this type of chart, with the actual numerical values, in their user manuals.

[@mrelwood_EUC]

Glad you found the video helpful! The problem in publishing graphs like that is in determining what anyone considers “safe”. Everyone has their own preferred headroom, and the power requirements vary wildly. Every single EUC now and in the future can be overleaned simply due to physics. You can’t create a system of any kind that wouldn’t be able to fall under any circumstances. So they can’t publish much from that chart beyond the free spin speed, which becomes public knowledge anyway as soon as the first customers get the unit. At the moment the only way to understand where exactly the limits are is to surpass them. Which means overleaning and crashing. I don’t see a way to solve that dilemma, other than to read on other’s experiences and take one’s best guess.

[@roghaj]

This robot does a GREAT job of explaining thigs. Impressive editing and audio as well. Very professional. I am going to keep sharing your videos to our local EUC groups.

[@mrelwood_EUC]

Wow, thank you so much, Rogie! ☺️

[@mikko.g]

Just got to enjoy my first cutout on an Inmotion V8F. I don't ride hard or push the beeps and every time I've overpowered it aggressive tilt back happened. Hit a deep pothole I couldn't see accelerating in a turning lane behind a car on the street and that was that. Helmet and wrist-guards prevented it from being worse but I learned that knee armor is 100% required even if you are not an aggressive rider. Video helped understand why it happened this time and didn't happen others.

[@mrelwood_EUC]

Sorry to hear about your crash! You’re right, knees are usually the first one to take the blow, especially with potholes. I hope you didn’t get injured badly! The V8F is a low-powered wheel, so it doesn’t have the power to survive bad potholes. Especially at higher speeds or with heavier riders. Take care!

[@BladeStar420]

This is my education course before riding again. I broke my shoulder blade by overleaning a Gotway MSX 84v.... twice. I cannot allow this to happen again on my V13 which will be here this week. Thanks for the informative video.

[@mrelwood_EUC]

Thanks! Yeah, I have never overleaned at speed, but I can imagine it can mess you up bad. At least the V13 has many times the power and decent safety mechanisms, unlike the MSX 84V.

[@shaynyoe]

A must watch for every EUC rider

[@martinsaunders2942]

What an excellent presentation Mr Elwood!👍. I have to say that when I hear more hysteria about this or that wheel cutting off, and downing a rider, I now generally think it was a self inflicted rider error. By the very nature of a wheel…as you point out……. They will always, always punish the fool hardy when pushed beyond the power available. Please keep up your channel, it’s excellent… Many thanks👍

[@mrelwood_EUC]

Thank you so much, Martin! I have also learned that riders generally don’t have a very good understanding about where the limits are, what happens if the limits are crossed, and what the risks are. I think that more information should prevent at least a few riders from overleaning.

[@Not_Evil_]

Really really nice video, I ride a V 12 HS the later version and for now during my 800km I ve never had any problems. But I did overlean the 16s ( First wheel I ever had) during the acceleration and it cut off. I also try not to ride faster than 68kmh on my V12

[@mrelwood_EUC]

Thanks! Yeah, knowing the limits of one’s wheel is crucial for staying safe. The V12 can still be overleaned much below 68km/h if you accelerate with too much intent. Just like any other wheel. And a non-suspended 16” tire is not very good for those speeds either. Stay safe!

[@kjvisual7]

This is helpful. I don't eide EUCs yet. But need to understand how it works before I do. Thanks.

[@mrelwood_EUC]

I appreciate you preparing properly! Glad that the video helped. 😊👍

[@heliophilus1]

brilliant explanation

[@mrelwood_EUC]

Thanks, glad you liked it!

[@guyjemus2706]

Excellent video, merci et bravo !

[@mrelwood_EUC]

Thank you! 😊

[@user-lw6sp5pk1y]

Creative illustration. Good work

[@mrelwood_EUC]

Hehe, thanks!

[@balazsbodi6659]

This was very useful, thank you!

[@mrelwood_EUC]

Glad it was of use!

[@DonovanWert]

Awesome video!! Thanks brother!!🙏 Blessed be in 23!!

[@mrelwood_EUC]

Thank you! Fellow vaper I assume? 👍

[@DonovanWert]

@@mrelwood_EUC fellow Vaper absolutely!! Run a vape shop!! That’s how I afford my 5 EUCs LOL

[@DonovanWert]

@@mrelwood_EUC btw your videos are the best information wise!! Thanks 🙏

[@mrelwood_EUC]

Thanks! A vape shop?? Wow, nice! 😃 Business going well? The legal status is a ditch in Finland… Which country are you in?

[@TigerTT]

I dealt with this once on an Inmotion V3S back in 2016 but that was a much weaker EUC compared to the one's that are available today, however it was good uphills nonetheless and it had a 72v motor, just not that much battery life and it was very easy to reach the 14mph top speed. Luckily I was going rather slow and the injury was just a bruise to my left knee while wearing jeans.

[@mrelwood_EUC]

Back then the power levels and speed were so small that I think we were all quite well aware about the limits being near. Nowadays the ride modes are so hard, there’s so much pover available, and the large tires and heavy wheels require so much effort to accelerate in the first place. All this pushes the limits so far that people don’t realize there to be any limits, and think that they can do whatever they want at any speed and the wheel should follow without question. And then they crash at a freakin’ 80 km/h! 15-25km/h was absolutely nothing compared.

[@urastus9202]

Thankyou mrelwood.

[@mrelwood_EUC]

Thanks!

[@meriwald1329]

Great video bud) Thx for having guts to bring up a point about GodMold scam

[@mrelwood_EUC]

Thanks! Yeah, that kind of shit just doesn’t fly and need to be exposed. I’ll always tell things the way they are, to the best of my abilities.

[@MathieuTechMoto]

Thank you !

[@Winning33]

very cool video

[@jamesm217]

Incredible video,well done!!

[@mrelwood_EUC]

Thanks a lot!

[@10spinaker]

Superb video as always! Question: Could one argue that having a harder riding mode would be safer “on the edge”? If you are close to the limit and you want to accelerate, the lean angle for a harder rider will be less than the softer rider, so in essence the wheel has to catch up less to correct this angle. Furthermore, you could also tell that the acceleration is slowing down before getting to the tipping point of over leaning as your lean angle is less. Just a thought exercise. But it would be interesting to know for these faster wheels. 🤔

[@mrelwood_EUC]

I think that most importantly it’s probably easier to feel when the wheel is at it’s limits when you’re on hard mode. Soft pedals getting slightly softer could be harder to notice than hard pedals getting soft. It’s true that soft pedals require less effort to overlean, but they require less effort to accelerate overall as well. So if you’re used to the mode you’re riding in, it might not make much difference.

[@pepperfingers]

Great video!

[@mrelwood_EUC]

Thanks, Pepper!

[@jessepope7726]

That last clip of dude without a helmet made my hands start sweating even before he crashed. Ouch

[@mrelwood_EUC]

I know… The voices he made after the crash in the original video were heartbreaking. The pain he must’ve been in must’ve been horrible. For a long time as well I’m sure.

[@MontyVee]

Nice

[@JonahHax]

Great educational video as usual! You mentioned that Inmotion and Kingsong have PWM tiltback and Begode with custom firmware. What about Leaperkim wheels?

[@mrelwood_EUC]

Thank you! I’m pretty sure that there isn’t a fixed PWM- or current-based tilt-back. Not sure about over- or undervoltage. I do know that there isn’t a fixed speed-based tilt-back though. And if you set one manually, it doesn’t adapt to the battery getting depleted or other varying conditions. So it’s nearly useless from safety perspective.

[@Musto_Master]

which euc application do you recommend for pwm settings? is the 80% optimal pwm value correct?

[@mrelwood_EUC]

There’s only a phone alarm that you can set for the PWM, no tilt-back nor wheel alarms. They are managed by the wheel firmware (if they exist) and they aren’t adjustable. For phone alarms there’s not much choice: If you use Apple, DarknessBot is the only one available. And for Android it’s EUC World. Usually a 70-80% limit is what makes the most sense. But the exact optimal value depends on the wheel model and the usage profile.

[@Musto_Master]

@@mrelwood_EUC first of all, thanks for the valuable reply. i am a begode Master user. i can't find the setting in which panel in euc world. thanks.

[@mrelwood_EUC]

@@Musto_Master I don’t use EUCw so I can’t help you there. But it is called “safety margin” or some like that. So 80% PWM is translated to 20% “safety margin” etc. Note that for the wheels that don’t report the PWM value themselves, the EUCw’s “safety margin” calculation is not very precise. But like I said in the video, instead of relying on phone alarms, I would definitely install the PWM firmware in a Begode. It should be available to install through EUCw.

[@Musto_Master]

@@mrelwood_EUC thank you❤️

[@TeamBlindMouse]

better get that left arm rest fixed on your couch. Lots of explosion's !🤣🤣

[@mrelwood_EUC]

🤣

[@ivanivanov5865]

So how to prevent cut off? sell my EUC?

[@mrelwood_EUC]

That would work… Or you can check the PWM utilization in an app after you accelerate to get a baseline on how much reserve you had.

[@EresTontoE]

So, in theory, if I were to ride at speeds no higher than 40Km/h, the odds of me experiencing a crash should be close to none, correct?

[@mrelwood_EUC]

Incorrect. A crash can be caused by a huge variety of events, situations and places. If you think you can control all those elements only by limiting your speed, you’re fooling yourself. Many modern EUCs do have a lot of power reserve at those speeds, but it’s still nowhere near limitless. Ride blindly into a deep pothole with stiff legs at 40km/h and any wheel will dip enough to disturb your balance. Just for an example. Speed is not what taxes the wheel the most. Burden is. A shallow downhill and steady speed takes very little energy even at very high speeds, while a steep incline, harsh acceleration or a bumpy road taxes the energy reserve much much more even at just 20km/h.

[@EresTontoE]

@mrelwood_EUC Thanks for the information & thoroughly explaining internal/external factors. I'm currently debating whether I should switch from an e-scooter to EUC. This will help me make a decision.

[@mrelwood_EUC]

@BerettaMac11Two9sAndaK, That’s a whole another question though: - Bigger tires of EUCs roll over bumps, pots and curbs with much less effort. - Modern EUCs are usually more stable at speed than scooters with an upright steering shaft. - EUCs are much more convenient to roll next to you in stores etc. - EUCs fit into cars without any effort. - AFAIK EUCs have a better range. - EUCs are simply much more fun to ride! If you’ve never done it, you’ll never understand how magical the mind reading flying carpet feels.

[@apb64]

Есть люди которые просто катаются и просто перемещаются. А есть любители скорости. Вот для последних моноколесо категорически противопоказано!

[@SolarizeYourLife]

You should never experience cutout or overlean if you are doing 40 km/h... Unless you are one of the many idiots taking the euc to unrealistic cutoff speeds...

[@mrelwood_EUC]

Having an overlean at 40km/h can absolutely happen no problem. You just need to lean enough forward. I’ve had several overleans at 10km/h!

[@Raph333]

I overleand my 16x at about 40 kmh.. the closer you get to the wheel speed limit, the less power it has in reserve

[@mrelwood_EUC]

@@Raph333 Exactly! What happened in your overlean? What were you doing? We’re you hurt?

[@Raph333]

@@mrelwood_EUC i accelerated to hard for too long, did a front flip and bang my ankle finishing the roll.. Ankle swollen for 2 weeks but not a scratch besides that

[@mrelwood_EUC]

@@Raph333 Glad that you didn’t get more damage. An overlean is great in educating how the power delivery curve works at higher speeds…

[@BigBoyElectricToys]

Great video!

[@mrelwood_EUC]

Thanks, JJ!