250km Kingsong S20 Review Update 

Get yours here! www.speedyfeet.co.uk/collections/electric-unicycle-one-wheel-segway/products/kingsong-s20-eagle-2220wh-3300w

Good addition to the first review. Will wait for the next one. Thanks!

Like that drone shot over the power lines just awesome. The wheel is holding up well. That foot plate that keeps on popping up it looks like it needs some grease to slip over like I spotted in the unboxing. It looks like rubber grommets style stoppers. I hope they sort out the rear light. We need to have a solid red and then brighter flashing red maybe. But no red light is not good. Thanks for the update. I am loving the videos and details.

I got to say, that drone's tracking and avoiding trees is pritty cool to see in action. Also this V8F from yours truly is great, that said im thinking about getting a V10 for that extra stick going up hills :P

Thanks for the review. I appreciate the real world conditions range tests. Better to test an EUC hard and know what the worst case is than ride it easy to milk the max range and end up disappointed later.

Great reviews as always 👏🏻👏🏻

Another fantastic review! Your mileage makes me wonder if it has the endurance for a single-track ride in the mountains. Then I remembered that I would probably gas out before it would.

THANK YOU! I love your minimum range test!

Thanks for this range test ! And the other bits.

It ticks so many boxes but leaves the most important one wanting; range. Dang it

Great, compact review. I like your real world approach! 28 miles range is pretty bad, not that I expected much when I heard 2.200 Wh battery, but this really is a deal breaker for me. Not gonna lie.

Great follow-up Ian, thanks for all the SoftTuner shots! 0:41 Charging Confirming charger only goes up to 124.33V / 124.49V instead of 126V Cells see their end of charge at 4.14V / 4.15V instead of 4.2V, so that'll cause a loss of range and might make top-balancing difficult after a while 4:17 Tiltback At that point the packs are indeed at the final tiltback voltage 95.17V / 95.29V is 3.17V per cell while not riding. Final titlback is usually 3.15V per cell on Kingsong wheel, and it's already pretty deep in the discharge compared to other OEMs. Battery 2 Cell 6 is already down to 3.13V, below titlback limit The evaluation of 17% battery reported by Kingsong app is completely bogus. At this point the wheel should not be ridden, with a risk to damage the cells or cut-out when draining significant current at this voltage 6:53 After cutout 82.59V / 82.75V is 2.75V per cell is below what these packs should be discharged. It's possible that the BMS disconnected the output to protect the cells, that the board could not provide the torque to keep you balanced at that low voltage. Battery 2 Cell 6 down to 2.64V, close to the minimum voltage allowed in their datasheet: 2.5V. Would lead to permanent degradation if drained further, and must have been lower than 2.64V when ridden. Conclusions: ● although the packs are not fully saturated at the beginning of the ride, it's hard to explain how much energy this wheel drains for such short range ● speed alarms and tiltback at low voltage are well adjusted ● for now, soft tuner must be used for battery level instead of the standard KingSong app Question: ● does the wheel indicates battery % like the standard (wrong) or soft tuner (correct) app?

Love to see your dog running with you. I also have a Siberian Husky I ride with. And I'm one of the 40 on ewheels 1st batch to USA.

good review! you have now got a new subscriber.

Thank you for the honest review

Excellent update on the s20!

great vid as always, cheers

I looked at the smashed bits of that front bumper and my brain immediately assumed I had missed Jon in the review video. You are ruining his mystique.

But did you love it? LOL. Thanks for these videos Ian.

Potentially daft question. I haven't looked into the range of other suspension wheels, but is it possible the wheel and battery work harder to keep it balanced when suspension means the geometry and centre of gravity are constantly changing?

Another hugely informative video. Especially the bit about the stairs lol (a big deal to me). Just curious what follow drone and controller you were using? Also average flight time you get from it? Beautiful footage. Cheers!

27ish miles range. That's real disappointing for a 2400wh pak. I remember you hit 30miles on the RS at a faster ave spd. Plus thats a nasty tiltback angle. Not impressed with the stats, for me at least. Waiting for you GW Master tests.

Wow! I remember the first time you and Johnathan went up that hill (on the Monsters I think) at 15:17, but it looked so effortless this time. And at 16:13 it looks like you are just rolling over the logs, instead of hopping like you used to do?

Thank you!

Great video, 👍 buying a second hand S22 soon 😀

really nice video and bunch of good infos👌🏻 Mario had to use blue loctite when he install the pedals hanger...lose screw ahaead😂 the suspension euc spoiled quality of euc riding in the bad way imo.. you see what i mean when you go back riding any other non suspension euc you would not like to ride non suspension again🤣

i love the dirty look. by far the dirtiest S20 i’ve seen (like it supposed to ) i watched all of them and can’t wait to get mine🤙

I think the poor range is a combination of high speed, maybe soft suspension, and cool weather. I think the batteries being in an aluminum shell is acting as a heat sink and cooling the batteries even further as he rides fast and has the wind cooling the shell. Probably great for the summer but bad for the winter.

Great Test thank you!! 🍘💨💨 The drone footage is awesome Skydio? (2 /2+)

Thanks Ian, it seems folks the S20 is a put your wheel in a car and drive to some off road trails to enjoy. This under 30 mile range of the S20 is highly disappointing. Kingsong’s stats are so far off sadly, they state it’s a 200 km wheel (@12 mph) listed on their website. Why didn’t they test the range at 6 mph! 😂 lol

Love the calmness in your voice and the way you speak tells that you are honest ✊🏼

Great 250km review! By the way, what drone are you using to follow you?

🇧🇷🇧🇷🇧🇷🇧🇷👏🏻, Saw your video and it was awesome! Is was very thorough.

Ride safe🙏

Coming downstairs is it not possible to open the handle while trundling the wheel so it doesn't cut out?

Is there any chance to unscrew the nut and less the tension of the spring, so the suspension will be more responsible? Can you try to do this?

Ian were you ever successful in getting your BMS firmware updated? Your range numbers are always the lowest but I have heard three or four others reporting 50 miles+ on their range tests. For you to get a little more than half of that seems nuts.

What is the Softuner apo Ian. I couldn't find it in the Google play store. Is t a KS app or an independent app?

The old stairs are covered in asbestos, lmao. Can you check if the bottom of the suspension flat enough to act as a kickstand? Seen the stand brake on others.

You slide down correctly, but push the wheel upwards with the front, not the back. Press the tire against the step and stay pushing behind the wheel, push the wheel grabbing the suspension elements, it will come up by itself even when it's wet or in snow.

I can see the shell and screws might be loose if use for an extensive time ! Otherwise brilliant wheel . Hope it’s Jon proof 😂

Oh my. Im 250lbs and my V11 gets nearly double that at 20mph average(%5). Hope this is a software issue. Very interested in this wheel.

little bit of locktite for any new vehicle on the right parts is always a good habit.

Excellent 👍 Cheers

A 3D printer is quite handy if you ride an euc - you can always print a new plastic piece to replace the damaged one 😊

Have you updated the BMS firmware? In the first video you read out the statement that said you need to update both firmwares then only showed update of the wheel not the battery. Suspect you will get better range with the BMS update if you haven't done it yet.

I have a single 10amp rapid charger. Will this go through 1 port or are they not capable of taking that much?

I’ll jus get a knobby on the s18 :p. Can you please look at stocking one Ian? I heard there’s a tire fits nicely without modding on Japanese Amazon. TR-1, you can see in Amazon reviews. Please buy a few for the shop. Thanks.

cracking review! heys just to be clear. you did average 50kmh and got 30miles. is that correct? thanks for checking in with KS and checking to make sure the batteries are correct and stuff. cos yeah others are reporting 60miles range. but maybe thats at a much lower speed. heys you know what would be a good video to make? since you really test it by going into the wet mud. i would love to see how you actually clean the thing? do you just wipe it down, or do you use a low pressure hose? thanks for the great quality videos and can't wait to see how the s20 progresses to 1000km.

The range seems a bit disappointing. I am wondering if you have had other wheels that are approximately 2200 watt hrs and if you got better or worse results? 3300w motor with 2200 Wh battery and a 200 lb man = less than 30 miles?

I am waiting for a range test from other people. With Monster Pro you also didn't get a lot of range, while other people got more range from the Monster Pro than the Sherman.

Can you please show us the sideways tilt angle to cutoff. I watched a video of the commander and it was tilted way over and still didn't switch off.

Lmaoooo at "having a lie down" hilarious

Hi Ian, the only one loving the shorter range is King Bruce. I know KingSong is saying the batteries are okay but I suspect they sent you a lemon. Other experienced testers like yourself are getting 60 miles of range and I regularly got 1.5x more than that on my s18. In other words I don't think the short-range has to do with you, I think it has to do with that particular wheel they sent you.

So tight

Even if the range was twice what you got Ian, 54 miles is far too little for my liking..... like having the latest Ferrari with a 10L fuel tank... it doesn't matter how nice it is to ride/drive... not being able to go far on it is a deal breaker for me. If KS made it 100v and sacraficed some voltage for range, I think it would be a perfect wheel. Right now, it seems the S20 is a beautiful to look at, smooth riding, awesome flop....

As long that it gets to 100km in one charge if I am not pushing it that hard 30-40kph on road id be happy

What’s exactly the range with a full charge?

It's worth noting that discharging lithium cells as low as 2.7-2.8v as shown here has a permanent impact and may affect the results of future videos.

I get 35 miles range out of my S18. Rider weight 70kg, Avg speeds 18, flat roads.

Ok so I'm 175lbs and I get 30 miles on my s18 and that's riding the beeps at full power the whole ride . So you're saying you're getting 27 miles at what speed?

Nitpicks aside, this wheel appears to be fantastic. The grippy tire isn't doing any favors for the range I suppose. The side pads needs improving - the lower side pad looks too much like high heels for my taste.

😂🤣😂 Looks kinda Flimsy.. I had an accident on my V12, I was turning a corner and hit and uneven patch.. caught the wobbles.. tried to work it out but had to bail.. Fully Geared Except for Wrist Guards.. 👎🏿👎🏿👎🏿 well, my V12 only got a scuff or two and I had to snap the side pad back on.. But I sprained both wrists and fractured a bone in my left hand.. needless to say I will never ride without wrist guards again. I saw Someone do a Begode Hero Video.. that seems better than the S20? Idk

Everyone needs to keep in mind, as Ian says, his range tests are worst-case. Over all the years his range tests have always been dismal compared to mine for instance. So this test is very consistent with his past results.. In Southern California the S20 is looking to be exceptional in range relative to the other comparable wheels. FYI.

Based on all the pre-release reviews I've seen, the S20 was hugely overhyped, the market is primed for new entries, and I'm glad I have an 18XL.

Any guess on the price when available?

Great vids. I got from them that it rides good but is engineered poorly. Still waiting for anything worth the money.

"Heat Film Error" What's that @ 4:29

My question is going to become boring and repetitive: are there any coil swap parts announced? Like if KS qualified a range of like 5 coils that are demonstrated to tune the performance to the rider (I'm 235lbs-ish, everything seems to have a break in or break down period with me). Hydraulic pistons are a very nice bonus...I think a good coil over shock would blow a pneumatic piston to hell on a constant basis, in such a way it was way more maintenance and cost of ownership than the hydraulic. They're also way more granular in behavior because fluids are usually far more resistant to compression and heat derating than gasses. Voltage is never going to tell you charge remaining. You have to extrapolate the sag on the fly to give a true reading - remember, with all currently shipping battery technologies, internal resistance of the battery changes with the amount of charge remaining in it and every chemistry/composition has a slightly to radically different load/discharge/performance curve.

So if you ride hard you mite get 15 miles out of it , what a let down

Great video!! For pedal issues, I believe have too much dirt, take in part > clean it > put together, i think it will resolve the issues. About range issues, it seem you are not getting full charge on battery percentage/volt (94%). Here in US, few riders have much more range than yours, i wonder fully charge what is volt and percentage vs your wheel. Hopefully it is an easy fix with KS firmware update for the bms.

Is anyone else nicknamed "Speedy" since they got their EUC, or is it just me? xD Great review!

That's a bit disappointing, and the tiltback comes really early 😓

That's an abysmal range 🙁 Oh well...

Seems like somebody could pretty easily design and CNC a metal bumper piece to replace that plastic one.

Drone Please?

I pre-ordered the S20 back last summer. The range is so disappointing that I might have to switch to a Sherman. I get over 30 miles on my Z10 and I'm over 230 lb.

Where is the purple colour on that rear light?? It made my decision to buy this because my daughter's name is Lila 💜

Disappointing to see and makes me appreciate my Nikki AR+ more and more. I can go 40-50 miles at a pretty fast pace, get it down to 10% and ride it to 24mph without a single beep or tiltback.

Like 👍 🌐

Something is happening with your 🦅 . It's not flying far enough on one charge 🙄 .

4:43 for the thumbnail

Why would anyone do a range test without starting at 100% battery?

6:30 "Zero battery", yet headlights still shining. 🤔🤨

Thanks for the review, regarding range I dont really know what it would be but for an 80kg rider I would expect around 40-55mins ride time, thats riding hard on roads with a road tire. Given the higher voltage and top speed I dont think you would get more.The KS20 is not a road wheel, and not a performance wheel, it was the follow up to the S18 and it has delivered. Kingsong could use the same frame work, shorten the suspension, increase the battery size, increase top speed to 53mph and this would be the road version S20R. It will be a hard wait, but KingSong are watching and listening.

Wrist guards 🤔

Why is everyone else saying 60 miles but you say 30 miles? Either we are being lied to by others or you have a faulty unit.

i would want to fall cause a dead battery not cause its trying to keep me safe. just upseting. offroading beast but it wants to be safe too. what make your mind up . put a off road button in the app that turns all b.s off. kids dont 4k euc plus tax anyways

First!!

Second!

Wait I’m confused it showed 18% but kicked you off? Did you figure that part out yet? You would think you could get some more range out of this , like 28-33miles sounds better lol I’ve seen 2 other range tests, one was 26, and then someone who did overheat hill said it could probably get 60 miles but I think he’s in for a bit of a rude awakening lol, but let’s see who knows maybe that’s just a hickup, twice the battery size of the s18 and you got 27… that’s very interesting Thanks for doing the range once again mate👍 you rock man

EUC makers think they benefit by lying to us. I think it would only do them good with some honesty. Battery procentage should show zero when you can't ride it anymore. No one is helped by having it show 20% when it's actually 0%. Shouldn't be to hard for an app to display correct remaining distance either. Remaining distance should be calculated from how many wh/km or mile that you as a rider use on average. It works find in cars so it's not like anyone needs to invent the wheel (pun). As a 100+ kg rider I'm not helped by having it show 100km left when I know that it's more like 50km.

Am I gonna get called uneducated and shit on again for saying the range seems disappointingly low?

Those ankle pad's leave your feet pigeon toed.. don't like that

All the youtube content producers need to tell Kingsong, to stay in the 21st century and put a proper display in this thing. It's straight out of the 1980's; I know, I lived through it. The V12 display is great; this looks like a black and white TV from stone age. There are a lot of the exterior parts that need an overhaul, before I will buy. The range is disappointing, as well as how you have to lift it. Boo.

this wheel is sadly so inferior in so many ways to the sherman the only two things it has good suspension and troley handle i dont understand how can it cost only a few hundred $ cheaper then the sherman this wheel is a rip off kinda similar to abrams and moster pro also ripoff wheels master better be awsome from what they shown so far might be something that can beat the sherman in many ways except distance

Hmmm??! Wheel is starting to look like a real disappointment!!

Not amazing re range for you :-)

Oh gosh that range is shit 😶

Something wrong with your wheel as per range test... in not aggressive style others could achieve about 100km....