1st think I tested on my scooter (G2 Master) and ahve to admit I was pretty surprised when there was pretty much no difference between speedometer and GPS.
1, make sure the tyre size is set properly on your scooter, if the tyre size is wrong in the settings, the speed and mileage will be wrong.
2, even cars speedometers over read slightly. If you’re doing 70mph in a car you’re probably doing about 67mph.
3, I’ve tested the Nami Klima with a GPS Speedo and when the nami shows 40mph, the GPS shows 37-38mph. This is just normal.
That's really far off! I'd not be ok with that and hope they have a fix for you. I have a yume y11 and fastest I hit said 56mph and I'm thinking there's no way. GPS showed 54mph. So yume isn't lying about their 50mph rating... just speed is off by ~2mph.
TL;DR: it's rare to have speedometer accuracy. However, the inaccuracy should not exceed +/- 4%
In all reality, it's rare for speedometers to be accurate. If you use the standard for automobile speedometers, an inaccuracy of give or take 4% is acceptable.
So, if your scooter's Speedo reads 20 mph, and you're going 19.2 mph, that's acceptable. But, I'd be pissed.
I had a scooter that was under reporting by 10%. I was pissed, however, the manufacturer sent me a firmware update that corrected the speedo so it reads accurately.
Maybe the manufacturer the scooter has a fix for it.
The gps isn't as precise as a well calibrated scoot since it takes the data dirrectly from the hall sensors in the motor to calculate the speed, so it's as precise as you have your wheel diameter setup in the system,
From my experience free apps measure the speed shit no matter what phone do I use, they always go atleast 10mph faster than the scooter actually goes. Even on something slow as m365 my phone measures top speed at 35mph with an average speed of 20, proper gps measures almost the same as the scooter.
then somethings wrong with yo phone. I use GPS status and its accurate. I was using it on a high speed train where the speedometer told 286km/h. GPS was accurate, telling 284km/h.
Train is stable so it's easy to measure scooter goes up/down curbs speed n acceleration is never stable so it's much harder to measure I have tried gps on nothing phone 1, Samsung Galaxy s21, lg g9 n cat s40, also tried different free apps all show bs.
well maybe don't go on roads that can fuck up the measurements. Obviously it will be wrong if you go on curbs and potholes. Go on a straight road with no bumps. Wait for the phone's gps to stabilize and then change settings. Its just testing, you don't need the speed to be perfect.
It's never more than a few MPH though. Every time I pass one of those radar speed checkers in my car, it's always about what my car speedometer shows. Unlike escooters which seem to exhibit a bigger difference and show up to like 10 MPH faster on the speedometer.
I dunno, for all my cars it's been about 8-9km/h difference which comes out to *checks notes* 5-6mph...
The radar speed checkers however show precisely the same speed as my phone's GPS readout, so I can at least rely on that.
Has to be wrong tires on the car then. Because that's way off. The odometer needs to be as accurate as possible for the life of the car. Otherwise buying a car with said distance on the odometer is a complete lie and that's not legal.
I'll be sure to forward your concerns to the Toyota factory which fitted those tires. Though, I've had similar experiences with Suzuki and Fiat, so I don't think it's a Toyota thing.
Everything from scooters, cars, motorbikes and even main battle tanks show the vehicles speed a few mph higher than what it really is doing. It's quite difficult to get a perfect speedometer so it's best to have them under register than over register speed.
I mean, you don't want them to underreport, then get a speeding fine when you unknowingly go over the speed limit in your main battle tank. I hate it when that happens.
I have a NIU KQI3max and even when going downhill it has never gotten to the advertised max speed. I get it for high performance 35mph plus machines, but for lower levels it feels a bit fraudulent to only go 75-80%of what you advertise.
Brake and mechanical. So you're braking with the hand brake lever rather than your pedal.
Try before you buy, went for dual hydraulics myself after a short test.
I for the most part wonder why that just because hydraulic brakes are a tech available for a bicycle that all other brakes and styles that are before it are now junk and you're going to die. Not really. Mechanical and hybrid disc brakes are more than capable of stopping a human on what's essentially a skateboard with a stick. It's in my eyes basically sky is the limits based on your pocket book. People were telling so many others that clamp style rim brake pads are not going to stop me on my motorized bicycle I built going 45mph. Buy the proper pads for the task and there's no problems. My clamp style brakes would stop me insanely fast. Easily lock up the wheels if I wanted. Cheap rubber piece that amazon may consider a brake pad isn't the same. I randomly tried one set that came with some hardware I need for shits and giggles and they lasted one stop. They were like a pencil eraser. I mean performance cars run into the same thing. If you don't have high performance pads you will lose your stopping ability from heat brake fade.
It's normal. When my speedo says 47, I know I'm going 40 but I always put my gps up to confirm in case I get pulled over for recklessness around people
https://youtu.be/CzzYEGm1RDo
I understand vsett 10+ is amazing especially for the weight. I am using a vsett 10+ motor on my ninebot max and sucker has some grunt to it. I also own a yume y11+ and can vouch for the size this scooter is and it's weight is honestly ridiculous. It's basically a ~120lbs scooter with a huge handlebar that's difficult just to get through a normal avg doorway. Perfect for offroad or long distance trips in a hurry because you can't beat how stable it is... but again I've never rode any other scooters other than a "cough cough" ninebot es4-800 bird scooter from Walmart.
depends on your definition of light, I have the Vsett 10+ which is a bit over 30kg but that's still much lighter than some of the other models running around and it's hard to imagine needing more grunt than that thing has
It depends on a lot of things. Obviously, the weight of the rider. A lot of these companies are testing these scooters out as a 140lb person riding them in perfect conditions. My scooter says 50 mph and definitely goes that, but I've had another scooter that claimed 40mph and would only hit 35mph for me as a 200lb person. The finger throttle displays are also known to be extremely inaccurate.
The weight of the rider doesn't change how accurate the speed readout is on the scooters display though, which is what OP was referring to. (It does indeed limit top speed in some cases)
My scooter straight up says that any speed and range ratings are using a 80kg rider. We can also assume perfect circumstances. I am not 80kg and conditions are not perfect, but I do think my real world numbers are "close enough" to those advertised.
yeah but there's a difference between the scooter not getting up to speed cos the rider is heavier than the test rider and the scooter "getting to speed" but it's actually going slower than it says it is.
My old NIU KQi3 Sport is slower than it claims to be. at a supposed 25km/h I am only doing 23. I confirmed this by driving past a speed trap that displays current speed, as well as driving alongside other scooters
Do you really need to go 52 mph on a scooter?
In order to avoid licensing requirements by national and local governments most scooters are capped at being able to go around 20 mph max otherwise they're classified as mopeds or even motorcycles and given a requirement that owners need to possess a valid class M license in order to legally operate the vehicle.
True. Beyond about 50 MPH and it basically makes no sense on a scooter form-factor and you'd be on a motorbike form-factor. My escooter tops out at 50 and I basically never go that fast. I do go 45 from time to time but mostly am between 15 and 35 mph.
Yeah so there’s a bunch of scooters and e-bikes (Surron, Talaria, E-Ride, Apollo, Nami, Vsett, etc) that go faster than that and they are all classified as mobility vehicles Or class 3 e-bikes. They don’t require anything to operate. Maybe outside US they do but not here.
Such a bummer for other countries. Can’t imagine wanting one if it couldn’t do at least 30mph. My new vsett 10+ kicks ass. I feel like a kid again riding it.
Yup my Mukuta 10+ was reading 45mph but I passed the radar and it read 39, same as my Speedometer app. I’ve only gotten it to like 42 on flat ground, and 46 going downhill
edit: I’m like 210lbs tho
I need to get a phone mount that's compatible with the razor ecosmart metro scooter before I can get any speed reading. The caroma P1 includes a speedometer as part of the digital display though....unfortunately I've gotta wait until some time on Monday for it to finally arrive.
Is this the case for your P1 Pro? Either the GPS is wrong or your scooter is calibrated incorrectly out the box, ESG certified a 50mph GPS and their P1 Pro Also showed 50 on the dot.
Gps app on your phone? I'd wager the scooter speedo is more accurate, assuming it's been properly calibrated for the tire diameter. Phone GPS uses cell tower triangulation before the GPS kicks in, and even that isn't accurate enough for such low speeds due to civilian GPS accuracy restrictions. (80' if I recall, that will make a big difference to low speeds).
GPS is more accurate.
World record car speed runs are done with 10hz GPS.
It does not use cell towers, it uses satellites. A-GPS is only to speed initial locks modern phones don't even need it they use multiple satellite networks at same time like GLONASS and GALILEO.
Phones don’t use the same GPS tech that world record car speed runs do. The tech needed to be that accurate doesn’t fit in a phone. As the person you replied to said, PHONES use cell towers to assist the process of locating the device.
10hz+ is used for records because it needs to be as accurate as possible, using a phone to test a scooters speed is adequate.
Phones use 1hz, newer phones are dual band L1 and L5. Phones only use cell towers to *speed up initial lock* and is not required at all or even used for navigation.
Apps like GPS test on Android let you see the dozens of satellites the phone connects to.
You can also test this by taking out the sim and using airplane mode, GPS connects and tracks without issue.
Whatever the accuracy is, even if it's less than 80 ft., if it's 1m it's going to have a bigger impact at scooter speeds than at driving speeds. So no, it's not ideal for testing a scooter's speed because their speeds are too low. It will be a lot more accurate at testing that world record speed run because the speeds are orders of magnitude higher and 1m or 80 ft. Doesn't make much difference in terms of % error.
Yeah, I once had my P settings all off and it was like there's no way i'm doing 65. Turns out it was set to kilometers instead of MPH and also the wheel diameter was off too.
Well, for rider safety, it would be better if it shows a higher-than actual speed, so the rider is more likely to slow down or be going under speed.
For business safety... It's the reverse.
Both of my Yamaha scooters (SMAX, Majesty) read around 9% higher than GPS. My Kymco was dead on.
1st think I tested on my scooter (G2 Master) and ahve to admit I was pretty surprised when there was pretty much no difference between speedometer and GPS.
Weight may also be a factor.
1, make sure the tyre size is set properly on your scooter, if the tyre size is wrong in the settings, the speed and mileage will be wrong. 2, even cars speedometers over read slightly. If you’re doing 70mph in a car you’re probably doing about 67mph. 3, I’ve tested the Nami Klima with a GPS Speedo and when the nami shows 40mph, the GPS shows 37-38mph. This is just normal.
That's really far off! I'd not be ok with that and hope they have a fix for you. I have a yume y11 and fastest I hit said 56mph and I'm thinking there's no way. GPS showed 54mph. So yume isn't lying about their 50mph rating... just speed is off by ~2mph.
TL;DR: it's rare to have speedometer accuracy. However, the inaccuracy should not exceed +/- 4% In all reality, it's rare for speedometers to be accurate. If you use the standard for automobile speedometers, an inaccuracy of give or take 4% is acceptable. So, if your scooter's Speedo reads 20 mph, and you're going 19.2 mph, that's acceptable. But, I'd be pissed. I had a scooter that was under reporting by 10%. I was pissed, however, the manufacturer sent me a firmware update that corrected the speedo so it reads accurately. Maybe the manufacturer the scooter has a fix for it.
+/- 4% is one thing but if the scooter shows like 50-55 MPH and it's really only getting 40 or something, that's a big difference.
Totally. That's unacceptable, if not outright lying.
The gps isn't as precise as a well calibrated scoot since it takes the data dirrectly from the hall sensors in the motor to calculate the speed, so it's as precise as you have your wheel diameter setup in the system,
I dunno man my Inokim OXO with hybrid off road tyres is 'pretty' accurate according to those speed checker jobbies. Maybe over by 2mph
I find my Mukuta 2-3 miles different and I'm not 100% sure. My GPS usually lags the scooter odometer.
Who cares if they do.
The mother fucking po-lice.
Use a proper gps not an app on ur phone
The iPhone has an actual GPS in it.
Phone GPS is pretty accurate. No one's gonna buy a "proper GPS" just to adjust a scooter speedometer.
From my experience free apps measure the speed shit no matter what phone do I use, they always go atleast 10mph faster than the scooter actually goes. Even on something slow as m365 my phone measures top speed at 35mph with an average speed of 20, proper gps measures almost the same as the scooter.
Either that or you've got a REALLY fast M365
No way on one of them 😐😐😐😐😐😐😐 35 lmao that's hilarious
then somethings wrong with yo phone. I use GPS status and its accurate. I was using it on a high speed train where the speedometer told 286km/h. GPS was accurate, telling 284km/h.
Train is stable so it's easy to measure scooter goes up/down curbs speed n acceleration is never stable so it's much harder to measure I have tried gps on nothing phone 1, Samsung Galaxy s21, lg g9 n cat s40, also tried different free apps all show bs.
well maybe don't go on roads that can fuck up the measurements. Obviously it will be wrong if you go on curbs and potholes. Go on a straight road with no bumps. Wait for the phone's gps to stabilize and then change settings. Its just testing, you don't need the speed to be perfect.
this may come as a shock, but every car and motorcycle are like this too...
It's never more than a few MPH though. Every time I pass one of those radar speed checkers in my car, it's always about what my car speedometer shows. Unlike escooters which seem to exhibit a bigger difference and show up to like 10 MPH faster on the speedometer.
I dunno, for all my cars it's been about 8-9km/h difference which comes out to *checks notes* 5-6mph... The radar speed checkers however show precisely the same speed as my phone's GPS readout, so I can at least rely on that.
Has to be wrong tires on the car then. Because that's way off. The odometer needs to be as accurate as possible for the life of the car. Otherwise buying a car with said distance on the odometer is a complete lie and that's not legal.
I'll be sure to forward your concerns to the Toyota factory which fitted those tires. Though, I've had similar experiences with Suzuki and Fiat, so I don't think it's a Toyota thing.
All the scooters and eBikes I've used always come in 2-3mph slower than speedometer. But most cars are like that as well.
Everything from scooters, cars, motorbikes and even main battle tanks show the vehicles speed a few mph higher than what it really is doing. It's quite difficult to get a perfect speedometer so it's best to have them under register than over register speed.
I mean, you don't want them to underreport, then get a speeding fine when you unknowingly go over the speed limit in your main battle tank. I hate it when that happens.
Tanks drive on public roads in EU, and are required to follow the speed limits there
Main battle tanks have options for speedcamera's...
🤣🤣
I have a NIU KQI3max and even when going downhill it has never gotten to the advertised max speed. I get it for high performance 35mph plus machines, but for lower levels it feels a bit fraudulent to only go 75-80%of what you advertise.
With those weak brakes that's a good thing.
I've not seen the scooter in person but looked up scooter and the best buy store ad and I see disc brakes. What's wrong with its brakes?
Brake and mechanical. So you're braking with the hand brake lever rather than your pedal. Try before you buy, went for dual hydraulics myself after a short test.
I’ve had no problems, they’re almost too much for me, maybe I’m just strong.
I for the most part wonder why that just because hydraulic brakes are a tech available for a bicycle that all other brakes and styles that are before it are now junk and you're going to die. Not really. Mechanical and hybrid disc brakes are more than capable of stopping a human on what's essentially a skateboard with a stick. It's in my eyes basically sky is the limits based on your pocket book. People were telling so many others that clamp style rim brake pads are not going to stop me on my motorized bicycle I built going 45mph. Buy the proper pads for the task and there's no problems. My clamp style brakes would stop me insanely fast. Easily lock up the wheels if I wanted. Cheap rubber piece that amazon may consider a brake pad isn't the same. I randomly tried one set that came with some hardware I need for shits and giggles and they lasted one stop. They were like a pencil eraser. I mean performance cars run into the same thing. If you don't have high performance pads you will lose your stopping ability from heat brake fade.
Exactly.
It's normal. When my speedo says 47, I know I'm going 40 but I always put my gps up to confirm in case I get pulled over for recklessness around people https://youtu.be/CzzYEGm1RDo
My Mantis is much more accurate. When speedo says 61 km/h GPS says 59 km/h
[удалено]
I understand vsett 10+ is amazing especially for the weight. I am using a vsett 10+ motor on my ninebot max and sucker has some grunt to it. I also own a yume y11+ and can vouch for the size this scooter is and it's weight is honestly ridiculous. It's basically a ~120lbs scooter with a huge handlebar that's difficult just to get through a normal avg doorway. Perfect for offroad or long distance trips in a hurry because you can't beat how stable it is... but again I've never rode any other scooters other than a "cough cough" ninebot es4-800 bird scooter from Walmart.
I forgot I was signed in wrong profile. Same comment applies haha ^^
depends on your definition of light, I have the Vsett 10+ which is a bit over 30kg but that's still much lighter than some of the other models running around and it's hard to imagine needing more grunt than that thing has
I'll divorce my scooter if I ever catch her lying to me!
Mate your scooters cheating on you with a monowheel. Sorry bruh.
😱😱😱
Monowheels I flippin hate them.
It depends on a lot of things. Obviously, the weight of the rider. A lot of these companies are testing these scooters out as a 140lb person riding them in perfect conditions. My scooter says 50 mph and definitely goes that, but I've had another scooter that claimed 40mph and would only hit 35mph for me as a 200lb person. The finger throttle displays are also known to be extremely inaccurate.
The weight of the rider doesn't change how accurate the speed readout is on the scooters display though, which is what OP was referring to. (It does indeed limit top speed in some cases)
My scooter straight up says that any speed and range ratings are using a 80kg rider. We can also assume perfect circumstances. I am not 80kg and conditions are not perfect, but I do think my real world numbers are "close enough" to those advertised.
yeah but there's a difference between the scooter not getting up to speed cos the rider is heavier than the test rider and the scooter "getting to speed" but it's actually going slower than it says it is.
My old NIU KQi3 Sport is slower than it claims to be. at a supposed 25km/h I am only doing 23. I confirmed this by driving past a speed trap that displays current speed, as well as driving alongside other scooters
Do you really need to go 52 mph on a scooter? In order to avoid licensing requirements by national and local governments most scooters are capped at being able to go around 20 mph max otherwise they're classified as mopeds or even motorcycles and given a requirement that owners need to possess a valid class M license in order to legally operate the vehicle.
True. Beyond about 50 MPH and it basically makes no sense on a scooter form-factor and you'd be on a motorbike form-factor. My escooter tops out at 50 and I basically never go that fast. I do go 45 from time to time but mostly am between 15 and 35 mph.
Yeah so there’s a bunch of scooters and e-bikes (Surron, Talaria, E-Ride, Apollo, Nami, Vsett, etc) that go faster than that and they are all classified as mobility vehicles Or class 3 e-bikes. They don’t require anything to operate. Maybe outside US they do but not here.
Im in England where we need a licence for butter knives.
Such a bummer for other countries. Can’t imagine wanting one if it couldn’t do at least 30mph. My new vsett 10+ kicks ass. I feel like a kid again riding it.
How fast? My Inokim does about 30mph and that's PLENTY fast for me and my bicycle helmet, but I am a massive puss tbf.
Go ‘murica!
Yup my Mukuta 10+ was reading 45mph but I passed the radar and it read 39, same as my Speedometer app. I’ve only gotten it to like 42 on flat ground, and 46 going downhill edit: I’m like 210lbs tho
That's fast enough big fella!
Mine is rated to do a maximum of 19 mph but I frequently get it to 23 mph on a flat surface
I need to get a phone mount that's compatible with the razor ecosmart metro scooter before I can get any speed reading. The caroma P1 includes a speedometer as part of the digital display though....unfortunately I've gotta wait until some time on Monday for it to finally arrive.
Yeah, in all likelihood, it's not really going the 23 mph.
womp womp
Which one do you have?
ArrowMax
Is this the case for your P1 Pro? Either the GPS is wrong or your scooter is calibrated incorrectly out the box, ESG certified a 50mph GPS and their P1 Pro Also showed 50 on the dot.
Yes, but I've also tested other scooters too and they all tended to show faster out of the box than they actually go, mostly just by a few MPH.
I drive by those speed radars that show you the speed and it's bang on with my speedometer. NIU KQi3 Pro
Same here. I genuinely feel like my KQI3 is pretty accurate when it comes to telling the speed. And im a bigger guy, too.
Gps app on your phone? I'd wager the scooter speedo is more accurate, assuming it's been properly calibrated for the tire diameter. Phone GPS uses cell tower triangulation before the GPS kicks in, and even that isn't accurate enough for such low speeds due to civilian GPS accuracy restrictions. (80' if I recall, that will make a big difference to low speeds).
GPS is more accurate. World record car speed runs are done with 10hz GPS. It does not use cell towers, it uses satellites. A-GPS is only to speed initial locks modern phones don't even need it they use multiple satellite networks at same time like GLONASS and GALILEO.
Phones don’t use the same GPS tech that world record car speed runs do. The tech needed to be that accurate doesn’t fit in a phone. As the person you replied to said, PHONES use cell towers to assist the process of locating the device.
10hz+ is used for records because it needs to be as accurate as possible, using a phone to test a scooters speed is adequate. Phones use 1hz, newer phones are dual band L1 and L5. Phones only use cell towers to *speed up initial lock* and is not required at all or even used for navigation. Apps like GPS test on Android let you see the dozens of satellites the phone connects to. You can also test this by taking out the sim and using airplane mode, GPS connects and tracks without issue.
Whatever the accuracy is, even if it's less than 80 ft., if it's 1m it's going to have a bigger impact at scooter speeds than at driving speeds. So no, it's not ideal for testing a scooter's speed because their speeds are too low. It will be a lot more accurate at testing that world record speed run because the speeds are orders of magnitude higher and 1m or 80 ft. Doesn't make much difference in terms of % error.
I guess the best way to tell would be with a radar gun. But I've tested this app while in my car and it matches pretty well to my car.
Yeah, but at 60 mph you fly through 80 ft. In a little over a second, the difference due to GPS accuracy is negligible at car speeds.
It’s A little under a second actually at 60mph your traveling at 88 feet per second
Right, sorry.
Mine is supposedly only got a 28mph speed limit but I got clocked going 32mph on one of those speed cameras that says your speed
Yeah, I once had my P settings all off and it was like there's no way i'm doing 65. Turns out it was set to kilometers instead of MPH and also the wheel diameter was off too.
Hmmm I have 4 scooters and all were pretty accurate with their rated speeds....
They are not lying it's a safety margin, better showing ~~less~~ more than real than ~~more~~ less
Well, for rider safety, it would be better if it shows a higher-than actual speed, so the rider is more likely to slow down or be going under speed. For business safety... It's the reverse.
My bad I inverted in my comment, I meant better showing more than less
Thats on almost all ebikes, scooters even cars but cars have like 1-3 mph difference
Very common with scooters. Half the time the maximum speed is only given at peak voltage with like a 70lb person on it or something like that
Yes, true, they’re only getting the top speed when you’re at like 100% charge then it slows off which is kind of annoying but whatever
I just ride past the radar speed trap.
Slap a ticket on this guys ass!
I had a unagi e500. Speedometer said 18mph tested against the speedometer on the lamp posts near the school zone which also said 18mph.
BTW, this is the app I used on my iPhone; https://apps.apple.com/us/app/speedometer/id518469483