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How to stay safe and happy on an electric unicycle (wmay.github.io)
40 points by behnamoh on July 24, 2023 | hide | past | favorite | 57 comments


I will never ride an EUC because of a design flaw due to physics: in order to slow down you must first accelerate.

The EUC works by tilting you forward to speed up, and tilting you backward to slowdown. So the control system has to always leave a margin in case you need to slow down or if max power is reduced. But if the battery dies faster than expected or you reach a steep downhill while already at top speed...too bad, nothing the system can do to keep you from faceplanting at max speed.

No thanks. Wheels are cheap, I'll take at least two.


>>But if the battery dies faster than expected or you reach a steep downhill while already at top speed...too bad, nothing the system can do to keep you from faceplanting at max speed.

riding at top speed EUC is very dangerous in itself, Inmotion I think can do 53 mph - thats fast even by car standards.

Riding top speed is surely recipe for certain death, any small pebble can faceplant you.

As long as you ride less than max speed (I never exceed 50% of max speed and never ride on <10% battery), there is enough of buffer for a wheel to behave just as you expect.

Pushing these limits is as dangerous as pushing speed limits on car.

you surely dont want to ride speed limit on your car, do you? (my car I think can do 190 mph, but I never reached even half of it)


I went looking for info on one-wheel vs unicycles, and both good reads I found mentioned there are physical "pushback" & auditory warnings ahead of time in unicycles in particular. I have yet to find a great description of pushback. One-wheels by compare have a "nose up" to warn you, but seem to lack the auditory warning for no apparent reason. https://radicalcommute.com/euc-vs-onewheel/


I did absolutely enjoy my time with some onewheels, but I did experience a "sideplant" on a climb when I likely exceeded either the torque of current limit when I absolutely never expected it (and got no warning either). Definitely not fun.

I never had issues when playing with it even at top speed and hitting an obstacle, as the extremely low platform and modest top velocity meant I could always recover by scrambling forward and propelling with the front feet. The real problem happens when not expecting it, like when I was slowly climbing, and even at zero speed the fall can be nasty. I never lowered my attention even for a split second on the onewheel after this.

I never had a chance to try an EUC, but due to how the legs are used for support, I can't see the same as a recover possibility. If the EUC fails, faceplant seems inevitable.

As for the "pushback", the effect on the onewheel is extremely noticeable and didn't feel the need for an additional auditory sound. The problem, as stated by OP, is that you can have failure modes where the motor stops supporting you before "pushback" (or even sound) kicks you in.


EUCs "tilt-back" and One-wheel's "nose up/pushback" is the same thing, but it's much easier for EUCs to do because of the smaller required momentum, thus you need less power margin to ride safely.


Disclaimer: I ride a substantial 4kW standing scooter with a real top speed of 100 kph / 60 mph.

Similarly to the unicycle stopping problem, panic stopping a Onewheel also doesn't seem possible without having room perpendicular to the direction of travel. I tried it in a demo arena but it didn't seem safe except for low speed travel on very large sidewalks* with space on all sides. Downtown streets seem too iffy to attempt, limiting its versatility. Unicycle-ish travel is great if you have the balance for and room to do it.

* Powered transportation generally shouldn't impede or compete with pedestrian traffic.


I've done it, they stop really fast if you're standing on the tail. I've ridden city streets, side walks, gravel paths, and on board walks. I've had to rapidly stop more then once.

If you're coming from a scooter, you're not going to be used to how much balance you're going to use. I currently ride a scooter around (a much less substantial then your own), and if I just stand on it and press the button it'll pretty much go up to top speed and cruise. Turns can be tricky at speed but it's over all a much safer. I pretty much could ride one in the street (bike lane) on unboxing.

One Wheel took me maybe 4ish hours of practice before I attempted a street, and 2 weeks before I was comfortable unlocking it's full speed. It's not an easy thing to ride but it's really fun in a way that the scooter just isn't.


>The EUC works by tilting you forward to speed up, and tilting you backward to slowdown.

I think this is the root of your misunderstanding. To speed up and slow down, you tilt yourself forward and backwards. This is actually a strength of the EUC's physics, as it means you're always perfectly balanced for any acceleration or braking, unlike a scooter or bike that can 'throw you over the handlebars'.

I highly recommend trying one, it's my regular commuter and extremely fun.


Did you ever try one though? Is a long term rider I have no idea what you're talking about.


My problem on a EUC, and why I sold it immediately, is that my foot did not slide and instead stuck, buckling my knee. I've done better dropping bikes and motorcycles than an EUC. I was wearing all the recommended gear. I also found the EUC quite uncomfortable due to the small pegs and standing right on my arches. You need shoes with a shank in them to be comfortable. TL;DR Not a fan.


https://www.bbc.co.uk/news/uk-england-beds-bucks-herts-66276... In the news today an electric unicycle rider was jailed for killing a pedestrian.


I'm having a hard time understanding why you'd ride an EUC when you can get an electric scooter. Or bicycle.

Other than to show off, of course, not that there's anything wrong with that.


My reasons for preferring EUCs:

- It can be easily combined with public transit. Its much smaller footprint causes less trouble for you and those around you. You can place it behind your legs while sitting and keep between legs while staying.

- Absolutely no issues with stairs and escalators (at least with the models on the lighter side).

- You can get it with yourself into office. In many places you can not bring your bicycle or scooter into a desk space or it will be strongly frowned upon.

- It does not take much space when stored at home.

- Because of the smaller footprint and lack of protruding parts like handlebars, it's much safer and easier to move in a relatively dense pedestrian traffic.

- It easily fits into a car's trunk.


in case this wasn't clear, "fun" is a perfectly good reason IMHO.

However, is it actually true that people would frown on an electric scooter but not an EUC? They seem to have a pretty similar footprint. I see people zipping around on models that don't have any handlebars.


Personally, I am using EUCs mostly as an urban transport. For recreation I prefer (non-powered) bicycles.

>I see people zipping around on models that don't have any handlebars.

Do you mean hoverboards? In my understanding, your description does not fall under the definition of "scooter": https://www.merriam-webster.com/dictionary/scooter


It occurred to me the term was wrong, but I thought "hoverboard" had been thoroughly discredited by now. "Electric skateboard" maybe.


Yeah scooters are much bigger. You may not realize it on the street but escooters are actually pretty huge. My scooter is about half the height and 3/5ths the length of a bike while the scooter folded up. It's also twice the weight.

To compare I was fine taking my one wheel in the store, carrying it. There's something awkward about taking an escooter, in the same way you wouldn't roll your bike around a grocery store.

Also in my experience escooters are much harder to lock then bikes. Being able to just take an EUC or one wheel inside and stick it under my desk at work is a good thing to me.


My subjective opinion is that it is an experience unlike any other mode of transportation. Once you become capable your brain almost tunes it out and you feel like you're flying.

This feeling may be different for other people, but for me it is the most fun mode of transport ever, and I have tried the majority of them.


Can't comment with a unicycle, but I regularly ride bikes, used several electric scooters and onewheels.

The onewheel is genuinely fun to ride and control. It does require a lot more attention than a bike. And I also never felt comfortable riding it faster than my ability to outrun it, which meant that it's never exactly ideal for long commutes (see my other comment above about the safety if interested).

For long distance and commuting, a bike is unbeatable IMHO. Comfortable, safer at speed. Electric or not.

I never saw the point on e-scooters, and don't own any for this reason. I feel more in control and have better ability to manouver and recover with a onewheel than an e-scooter, but the e-scooter requires almost zero brain to use, so there's that. The e-scooters have much bigger range too, and are less tiring to use.

I wish I could try an EUC. I suspect it has similar characteristic to the "flow" mechanics of the onewheel which would make it appealing, but I wonder how fast I would actually push it comfortably before wearing a full-face helmet.


I switched over to an escooter. The no brain thing is right. Press button, go forward. I suspect that's one of the reasons they're super popular.

I used to have a one wheel I commuted on. It was fine. I was fine getting it up to full speed a lot and had a good commute for it (mostly flat, mostly bike lanes). At some point you realize they can break 20 in the right conditions. This is a stupid line of thought I suggest no one reading this follow if they get one. Didn't crash but I could have. Always wear safety gear (I have a replaced cracked helmet to show why).

Bikes are the best, locking is the worst part about them. If they had a bike I didn't have to lock you'd never get me on anything else.

Would also love to do more then a few demo rides on an EUC. From what I've been told by riders who've done both they're much harder than a one wheel. I've honestly kinda wondered about safety on them. On the one wheel if I crashed, I normally ended up falling backwards or forwards off it and rolling. On EUC it feels hard to fall anyway besides forwards or backwards without getting your feet tangled in it. Those things are heavy and fast, I'd hate to see what they can do to ankle bones.


I was able to carry the onewheel on any transport, and that's nice, but it's not as convenient to lock compared to a bike. It's also too heavy to carry comfortably for more than 5 minutes. When you want to go into a supermarket for example you're in a worse position compared to a bike.

How do you handle an escooter in that situation?

I've seen the "carry handle" in action on a EUC, and it's pretty convenient for that. Held vertical takes next to no space on the ground so it's not much different than having a trolley.


I normally would stick the one wheel in the bottom of my cart. I also could stick it under my desk at work which helped a bunch. Bikes got locked in a parking garage that was "secured" but would have a bunch of bikes stolen every 3 months.

I don't. I just can't take the escooter to the store. I can really only commute on it as I can't really do anything with it when I get to a store/bar/whatever. My friends may or may not be able to fit it depending the apartment size. Now that I'm laid off I'm probably going to try to sell the scooter.

Those trolley handles look great. My next PEV is probably going to be an EUC of some stripe. I like that there's more than one brand after watching Future Motion get more restrictive and have more problems with their recent releases.


I currently use Citibike and am happy with it. However, if I ever considered purchasing an EUC instead of a bike it's because I wouldn't have to park it and thus making my trips door-to-door rather than having to stop by wherever the bike is parked. I would be able to bring it with me, whether I'm going upstairs into my office or grocery shopping (as long as they have a collapsible handle.)

I think I am more persuaded by the EUC than by the electric scooter because of its speed and maneuverability? I'm not sure, but it seems to have similar problems as the bike.


On the more stable e-scooters (not the awkward rentals like Lime and Bird), it's possible to carve almost like a skateboard. Unless you have a BMX, there's not the options. I miss my all chrome 80's Diamondback with black fiberglass wheels.


Dress for the slide, not for the ride.


Always this.


Been riding an EUC for the past 7 years. Never had an issue with braking or falls. It's truly a marvelous means of local transportation, you can take it wherever you go, take it inside the house so theft is not an issue.

The only brand I had experience was InMotion/solowheel and did not try any other one out there so my experience is limited to his brand only.

After riding it for so long it's easier than walking and I could attest to riding it while drunk without any issues you're basically standing on a platform with a wheel in the middle.

I've seen a new generation of EUCs that go fast speeds. I will never go even close to that, feels extreme and is likely dangerous.

I could go on snow, ice, rain etc but I noticed EUCs don't like carpets and any kind of grooves the wheel can get stuck into.


Personally I just don't get the appeal of electric unicycles. Bicycles are far more stable and harder to fall off on. Even then I usually wear long sleeves and long pants just in case, and gloves for longer rides if it isn't too hot. I like my skin intact.


A couple of years ago I used to mountainbike quite seriously and commute 14km round-trip to university. I have since then switched first to commuting on a scooter, then to a OneWheel, and most recently to an electric longboard. I would never go back to a bike for commuting for a number of reasons:

1. I cannot bring the bike in to many places such as the office or the gym, it must be parked outside exposed to the elements. On the other hand, scooter, wheel, and longboard can all easily be picked up and carried indoors basically everywhere, including public transit, shops, gym, and office.

2. The bike requires physical effort, which is great if you're biking for fitness, but when I'm commuting somewhere I don't like to have to shower as soon as I get there.

3. Onewheels and skateboards in particular are so much more fun to ride than bikes on regular roads. (Bikes are still way superior on trails and mountains though).


While I understand "board" vs "bike", I don't actually understand the "onewheel" vs "skateboard" thing.

An electric skateboard or scooter just seems completely superior on almost all axes.


I'm part of an electric riding group in my city. We've had several members switch from electric skateboards and scooters to EUC without looking back. Two critical differences that make electric skateboards much worse than onewheels or electric unicycles: control mechanism and wheel diameter.

Electric skateboards and scooters have tiny wheel diameters. Especially with esk8, it's very difficult to go on any rough terrain: pebbled asphalt, cobblestone, grassy park, gravel, sand, dirt road, up or downhill. Scooter wheel diameters are also a safety issue due to that combination of easy brainless riding and small wheel diameter.

Electric skateboards and scooters interface with your hand, but EUC and OneWheels interface with your balance - your whole body. There's an intuitive sense of where you're going, and you have many degrees of freedom along your entire body that you can leverage to maneuver for incredibly fine tuned and synchronized control of your acceleration to the point where it feels like flying. The fact that acceleration and balance are intimately tied together without your hands interfacing eliminates a huge category of problems from accelerating or braking too hard vs. your centre of gravity. When you're riding in any situation where hand dexterity is compromised (i.e. wrist guards, considering none of these vehicles are any safer for your wrists should you fall), this is an amazing preventative safety element.


Electric scooters (Razor, not Vespa) could be a happy middle. More stable than the unicycle, more portable than the bicycle.


Oof, no. I had a Vespa-style electric scooter for a few years and I felt much safer riding it than any Razor scooter.

The Razor scooters have tiny wheels that will flip over even on the tiniest pothole and you'll end up scraping your skin off flying into the road, and possibly smash your face into the ground as well. They also occupy a weird middle ground of being dangerously fast for the sidewalk and dangerously slow for the road.


Yeah, the tiny wheels on the old kids Razors are terrible. But the electric kick scooters are a bit better. I wouldn’t want to go 20mph on any of them, but that speed is unsafe on sidewalks regardless.

I’d love an electric motor scooter. But that’s not really comparable to e-bikes, e-scooters, or e-unicycles.


Living in the SF area, I'm still considering one because you can bring it inside a lot easier than a bicycle and theft is a huge concern here. It would be a good compliment to BART, I think.


We really need more products like this https://www.skunklock.com/


MagnaVolt: the final word in auto security: https://www.youtube.com/watch?v=bMtqRir7dco


Looks like an interesting idea but wouldn't an attempted theft render your bike horribly noxious smelling? Assuming the thief wasn't high enough to not care, or wore a respirator.


> wouldn't an attempted theft render your bike horribly noxious smelling?

I imagine it would, although it's probably easier to wash whatever stink sauce is inside off your bike than off your clothing (if you're the thief).

It seems like the idea is that the thief gets halfway through cutting the lock and then gets the hell out of dodge - although i guess maybe if they're thinking straight, they might realize the cost of stank is already sunk, and just finish the job.

> respirator

I would think that any thief who knows enough about these locks to come prepared would rather not walk around smelling like skunk. But I guess just like any lock, it's easily defeated if the thief is sufficiently prepared. The idea is to make the theft such a pain in the ass that they choose a different target.


Hopefully the thief sees the warnings and picks a different bike lock to cut instead. The lock doesn't have to deploy the skunk to be effective.

BRB going to print up some warning stickers for my lock.


Just spray it down with a hose, or wait till the next time it rains?

I'd rather wash down the stink than have to spend $800 for a new bike.


Maybe a foldable e-bike would be a good compromise?


Another important thing is to not go 87mph on an electric unicycle.

https://electrek.co/2022/08/14/inmotion-unveils-fastest-in-t...


Strictly speaking, you should not ride a vehicle that can fling you off at a speed much faster than you can sprint. They should probably be talking to skateboarders about the fine art of not eating shit.

Each person will have a different maximum safe speed.

> not go 87mph

When this baby gets up to 88mph, you're gonna see some serious shit.


I'm not sure what your stance on non-electric bicycles is but just a leisurely cruise is faster than I can sprint.


And by serious I assume you mean meat crayon.


It’s not the falling that kills you, it’s the sudden stop at the bottom.


Note that's not the actual top speed in use:

"With that much power behind the 22″ wheel, the electric unicycle achieves a wheel lift speed of 140 km/h (87 mph). The wheel lift speed is the unloaded top speed of the unicycle’s wheel when the unit is lifted into the air. It is higher than the actual top speed when ridden on flat ground, but is a useful metric used in the industry for comparing electric unicycles. The actual operational top speed of the V13 is still likely to surpass 90-100 km/h (55-60 mph)."


That article got the units wrong. It should be KPH.


The promotional graphic says 140kph


I think the biggest factor is how fast you go. I no longer go faster than 15 mph and usually ride around 10 mph.


I think the biggest factor is knowing how to fall, and I'm glad they included it, although I wish it was at the top because in my experience it's so important, and potentially applies to any situation in life where accidents can happen, not just when you're padded up for action sports.

Of course, knowing how fall comes with a strong intuition about when you're going too fast to manage a fall without serious injury. How fast is too fast is particular to the individual and their experience.


Most people are going faster than they think. 20MPH slide is enough to occasionally put people in the hospital

a "sudden dismount" at 15 mph can annihilate your teeth, or cause severe TBI. Even tripping while walking in the wrong way and hitting your head can lead to death.

If you're going slow, you can maybe skimp on some of the abrasive protection, but you should still have something on your skull and joints.


And then as speeds go up, your cervical spine and then your spine in general.


I have to say, that's a surprisingly well maintained and curated site. As a former motorcyclist, I also personally approve of their comments regarding safety gear rating and finding good vendors.


https://wmay.github.io/euc-safety/guides/helmets.html Linked from here, talks about full face helmets.


Hot take: people who do needlessly difficult things like riding unicycles are annoying.




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