Top Speed?
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2018 Vespa GTS 300
Joined: 15 Jan 2020
Posts: 19
Location: Kansas
Sun Feb 09, 2020 4:14 pm quote
Iím at 264 miles on my new 2018 300 GTS. Iím curious what others have experience with in terms of top end speed. The dealer says 90 - Iím guessing because the speedo goes to 90 but I canít imagine unless itís downhill with a 60mph tailwind. Iím sure weight has a bit to do with it. Iíve had it up to 65 (speedo says 70 but Iím assuming itís calibrated a bit wrong)
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'09 250 GTSie '75 Rally 200 '79 P200 '09 Stella 221
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Sun Feb 09, 2020 4:18 pm quote
80 to 84 indicated should be easily obtainable on the motorway
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Location: Florida
Sun Feb 09, 2020 5:13 pm quote
In June, I was able to chooch along at 135 KM/H indicated on the Autobahn in far north Germany. I did not feel at all concerned at that speed, and was able to move easily in the traffic flow.

....This post is to mostly support the previous estimate of 80+ mph, and to somewhat boast that I actually *did* that.

(Today I hit 67mph (gps) on my LX150 on a slight downhill with a following wind....)

/hwn
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2016 Vespa GTS 300 i.e. ABS, 2010 Vespa GTS 300 ie Super (sold) & 2003 Honda Shadow VT750 ACE (sold) & 2006 Vespa LX150 (sold)
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Sun Feb 09, 2020 5:59 pm quote
Top speed is probably 135-140 km/h. Depending on circumstances the rev limiter will kick in. That top speed will be momentary and under favourable conditions (downhill, tailwind, etc.).

A better measure of performance is longer distance cruising speed. My GTS will average about 120 over long distances on reasonably level terrain, which is plenty fast and means that in intercity travel, I pass all the 18 wheelers, and a majority of other vehicles.
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2016 Vespa GTS300ie abs/asr/ess Settantesimo '70'
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Sun Feb 09, 2020 8:12 pm quote
Re: Top Speed?
Leftywasprider wrote:
Iím at 264 miles on my new 2018 300 GTS. Iím curious what others have experience with in terms of top end speed. The dealer says 90 - Iím guessing because the speedo goes to 90 but I canít imagine unless itís downhill with a 60mph tailwind. Iím sure weight has a bit to do with it. Iíve had it up to 65 (speedo says 70 but Iím assuming itís calibrated a bit wrong)
Top speed on the euro 4 GTS300 is normally around 77mph actual in standard trim. Vespa says 76mph but they all seem to top out slightly more. With a small front screen (midsize) maybe 79-80mph. It's unlikely you'll get any more unless you mod her.

My Euro 3 2016 GTS300 will touch around 80mph+ sustained actual gps speed in standard trim with midsize screen. It's showing 84-85mph at that speed on the clock. Rev limiter will kick in at about 81mph actual.

Your bike does not produce quite as much power as my 2016 euro3 bike so the top speed is going to be marginally less than mine. Although the difference is insignificant.
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Sun Feb 09, 2020 8:17 pm quote
Not stock
Ancient history...

gts.jpg

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'09 250 GTSie '75 Rally 200 '79 P200 '09 Stella 221
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Sun Feb 09, 2020 9:20 pm quote
I installed a Malossi cylinder w/head, their tuner and ring and pinion and have seen triple digit indicated speed, especially if I can catch a larger SUV on the motorway to draft at speed. I would strongly recommend upgrading the suspension, brakes, tires and install a small screen. These bikes are heavy enough to be stable at speed with these upgrades. A friend and I ran ours flat out on the motorway for 42 miles and averaged 74mpg. Pretty impressive for a scooter.
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Lx 50 4T, GTS 250, S 150 (Missing in KS), Something Chinese
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Mon Feb 10, 2020 9:12 am quote
How fast are you going when the rev limiter kicks in?

My GTS 250 goes 83 miles per hour before the limiter kicks in.
Enthusiast
2012 LX150ie
Joined: 28 Jul 2018
Posts: 97
Location: Austin Texas USA
Mon Feb 10, 2020 9:57 am quote
I am with herrwingnut
I can confirm that my LX-150V can approach 65 on a slight down hill...after 5 or 6 seconds.
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Mon Feb 10, 2020 9:58 am quote
About 85 MPH with the limiter sounds right.

As far as how fast these things will go depends on a variety of factors including really simple things like the riders weight and aerodynamics. Something simple like a mid size windscreen can help a fair amount.

I will say this , they will go fast. I have a 2017 GTV that is pretty much fully kitted out including the Force Master 2 and TBH I'm not sure what my top end is though I'd guess around 105 mph. 85-90 mph is a comfort zone for it and I usually find myself having to throttle back at about 140 kmh on the highways here as I prefer not to get the speeding ticket. It is very happy there though and handles just fine.

The thing is you can get a lot more bike for a lot less if you want to go fast. The upgrades on a Vespa for real performance aren't insanely expensive but also not cheap. You have to really love Vespa and scootering to want to do it. That being said if you do they are a lot of fun. Hell they are fun without any upgrades and perfectly highway capable stock.
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2016 Vespa GTS 300 i.e. ABS, 2010 Vespa GTS 300 ie Super (sold) & 2003 Honda Shadow VT750 ACE (sold) & 2006 Vespa LX150 (sold)
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Mon Feb 10, 2020 10:38 am quote
herrwingnut wrote:
In June, I was able to chooch along at 135 KM/H indicated on the Autobahn in far north Germany. I did not feel at all concerned at that speed, and was able to move easily in the traffic flow.

....This post is to mostly support the previous estimate of 80+ mph, and to somewhat boast that I actually *did* that.

(Today I hit 67mph (gps) on my LX150 on a slight downhill with a following wind....)

/hwn
Welcome to MV from the Great White North!
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2016 Vespa GTS 300 i.e. ABS, 2010 Vespa GTS 300 ie Super (sold) & 2003 Honda Shadow VT750 ACE (sold) & 2006 Vespa LX150 (sold)
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Mon Feb 10, 2020 10:41 am quote
Re: I am with herrwingnut
Jimjar wrote:
I can confirm that my LX-150V can approach 65 on a slight down hill...after 5 or 6 seconds.
Yup totally agree.

I used to get up there on my LX150 on the level by drafting an 18 wheeler on the commute home
Hooked
GTS 300
Joined: 19 Nov 2018
Posts: 215
Location: Cleveland, Ohio
Mon Feb 10, 2020 10:43 am quote
I did 92 MP hour in Geneva Amerivespa on flat road with my head tucked behind a medium screen and 250 pounds of single person weight. Tire pressure per spec 26Front-29Rear. No drafting.
I get 75 MP gallon from my 2018 standard GTS.
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Yamaha Tricity 155 Urban 2019 - MV Agusta 125 RS 1956 - Moto Guzzi Airone 250 Sport 1951
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Mon Feb 10, 2020 10:48 am quote
herrwingnut wrote:
Today I hit 67mph (gps) on my LX150 on a slight downhill with a following wind....
For a 150 it is the proper speed...
Veni, Vidi, Posti
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Mon Feb 10, 2020 11:09 am quote
Jimjar wrote:
I can confirm that my LX-150 can approach 65 on a slight down hill...after 5 or 6 seconds.
I've heard you can easily hit triple digits if you go over a guard rail and head straight down.
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2016 Vespa GTS 300 i.e. ABS, 2010 Vespa GTS 300 ie Super (sold) & 2003 Honda Shadow VT750 ACE (sold) & 2006 Vespa LX150 (sold)
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Mon Feb 10, 2020 11:24 am quote
Dooglas wrote:
Jimjar wrote:
I can confirm that my LX-150 can approach 65 on a slight down hill...after 5 or 6 seconds.
I've heard you can easily hit triple digits if you go over a guard rail and head straight down.
Veni, Vidi, Posti
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Mon Feb 10, 2020 11:52 am quote
David Masse wrote:
Dooglas wrote:
Jimjar wrote:
I can confirm that my LX-150 can approach 65 on a slight down hill...after 5 or 6 seconds.
I've heard you can easily hit triple digits if you go over a guard rail and head straight down.
I would not advise that. But just in case you feel extra confident and inspired, stranger things have happened. 😄
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Mon Feb 10, 2020 12:20 pm quote


T Max: road test from the magazine In Sella, from 0 to 62 mph (100 km / h) in 7.2 seconds.
To be precise, the Tricity 155 achieved the same hourly average at the same speed (4.9 seconds) but on a 50-meter course.
Everything is relative...better if slightly downhill.
Ossessionato
2016 Vespa GTS 300 i.e. ABS, 2010 Vespa GTS 300 ie Super (sold) & 2003 Honda Shadow VT750 ACE (sold) & 2006 Vespa LX150 (sold)
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Tue Feb 11, 2020 11:16 am quote
Max6200 wrote:
David Masse wrote:
Dooglas wrote:
Jimjar wrote:
I can confirm that my LX-150 can approach 65 on a slight down hill...after 5 or 6 seconds.
I've heard you can easily hit triple digits if you go over a guard rail and head straight down.
I would not advise that. But just in case you feel extra confident and inspired, stranger things have happened. 😄
"There is an art, or, rather, a knack to flying. The knack lies in learning how to throw yourself at the ground and miss. Pick a nice day and try it. All it requires is simply the ability to throw yourself forward with all your weight, and the willingness not to mind that it's going to hurt.

That is, it's going to hurt if you fail to miss the ground. Most people fall to miss the ground, and if they are really trying properly, the likelihood is that they will fail to miss it fairly hard. Clearly, it is the second part, the missing, which presents the difficulties.

One problem is that you have to miss the ground accidentally. It's no good deliberately intending to miss the ground because you won't. You have to have your attention suddenly distracted by something else when you're halfway there, so that you are no longer thinking about falling, or about the ground, or about how much it's going to hurt if you fail to miss it.

It is notoriously difficult to prize your attention away from these three things during the split second you have at your disposal. Hence most people's failure, and their eventual disillusionment with this exhilarating and spectacular sport. If, however, you are lucky enough to have your attention momentarily distracted at the crucial moment by, say, a gorgeous pair of legs (tentacles, pseudopodia, according to phyllum and/or personal inclination) or a bomb going off in your vicinity, or by suddenly spotting an extremely rare species of beetle crawling along a nearby twig, then in your astonishment you will miss the ground completely and remain bobbing just a few inches above it in what might seem to be a slightly foolish manner. This is a moment for superb and delicate concentration.

Bob and float, bob and float. Ignore all considerations of your own weight and simply let yourself waft higher. Do not listen to what anybody says to you at this point because they are unlikely to say anything helpful. They are most likely to say something along the lines of "Good God, you can't possibly be flying!"

It is vitally important not to believe them or they will suddenly be right.

Waft higher and higher. Try a few swoops, gentle ones at first, then drift above the treetops breathing regularly.

DO NOT WAVE AT ANYBODY."

Doug Adams, the Hitchiker's Guide to the Galaxy, Life, the Universe and Everything, Chapter 9.
Hooked
2016 GTV 300 ABS
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Tue Feb 11, 2020 11:32 am quote
With a tailwind on flat road, my 2016 GTV300 tops out at about 80 mph. With a headwind, about 68 mph. All things being equal, my top speed at WOT is approx 73-75 mph. I'm talking GPS speed - not indicated on the speedometer, which reads about 6 mph too high.
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Tue Feb 11, 2020 11:32 am quote
I read that book ... but I did not understand much ... I will be hard of understanding.
Vespa withstands high speeds badly, has a design that does not favor aerodynamics very much and a marked deporting effect on the front, this above its real maximum speed which is: 300 = 122 km / h - 125 = 96 km / h - 150 = 98 km / h.
Data collected on road test of various Italian magazines.
The windscreen's air resistance (if any) and the rider's weight are also important, speaking of Vespa the performances are relative, not on the buy because it is powerful and fast.
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Wed Feb 12, 2020 12:43 am quote
ETres wrote:
With a tailwind on flat road, my 2016 GTV300 tops out at about 80 mph. With a headwind, about 68 mph. All things being equal, my top speed at WOT is approx 73-75 mph. I'm talking GPS speed - not indicated on the speedometer, which reads about 6 mph too high.
That's about right, and will also depend upon the rider weight as to how fast you can go.
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Wed Feb 12, 2020 12:47 am quote
Harbinger wrote:
About 85 MPH with the limiter sounds right.

In standard trim (no Malossi stuff) the limiter is designed to kick in at 80mph as far as I can judge from the dyno runs I've done. Speedo may indicate 85mph plus depending how worn tyres are and how worn the belt, rollers and pulleys are. So you are about right Harbinger.
Member
Vespa Gt 200 '03
Joined: 20 Jan 2020
Posts: 14
Location: Hungary, Pťcs
Wed Feb 12, 2020 12:52 am quote
my gt 200 top speed is 118 km/h measured with gps
then the instrument index is above 140km/h near to the CODE-LED
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Yamaha Tricity 155 Urban 2019 - MV Agusta 125 RS 1956 - Moto Guzzi Airone 250 Sport 1951
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Wed Feb 12, 2020 1:57 am quote
... the faster you go and the less space you put on to brake ...
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Wed Feb 12, 2020 7:34 am quote
Harbinger wrote:
About 85 MPH with the limiter sounds right.

As far as how fast these things will go depends on a variety of factors including really simple things like the riders weight and aerodynamics. Something simple like a mid size windscreen can help a fair amount.

I will say this , they will go fast. I have a 2017 GTV that is pretty much fully kitted out including the Force Master 2 and TBH I'm not sure what my top end is though I'd guess around 105 mph. 85-90 mph is a comfort zone for it and I usually find myself having to throttle back at about 140 kmh on the highways here as I prefer not to get the speeding ticket. It is very happy there though and handles just fine.

The thing is you can get a lot more bike for a lot less if you want to go fast. The upgrades on a Vespa for real performance aren't insanely expensive but also not cheap. You have to really love Vespa and scootering to want to do it. That being said if you do they are a lot of fun. Hell they are fun without any upgrades and perfectly highway capable stock.
Pretty much this. With the "Euro-spec" flyscreen installed and correct tire pressure, I've had my GTS up to an "official" 85mph several times (flat terrain/mild descent, little to no headwind). Minus flyscreen I probably managed about 80. Consider this "full afterburner" for a Euro 3-spec GTS.
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Thu Feb 13, 2020 2:47 am quote
Yes, bear in mind that no two bikes will be the same for top speed and when the rev limiter kicks in due to the variables concerning tyre wear, belt wear, variator wear, pulley/shive wear as to when the rev limiter will kick in. Rider weight also plays a part as will aerodynamics.

It may kick in at an INDICATED 85 for some, but others may have it kick in at 80mph or anywhere inbetween due to transmission wear. ACTUAL sustained gps speed will be different and always lower than indicated speed.
Veni, Vidi, Posti
LX190, Primavera
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Thu Feb 13, 2020 3:34 am quote
Stromrider wrote:
Rider weight also plays a part as will aerodynamics
Isn't rider weight irrelevant apart from its impact on aerodynamics?
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Thu Feb 13, 2020 3:43 am quote
No, rider weight is a big part of the equation. It takes more power to move heavier weight. Heavier weight adds to the friction produced by the tyres. To move that heavier weight faster uses more fuel which generates more heat in the engine and transmision altering their overall performance. That's in addition to the aerodynamics part of it.

Last edited by Stromrider on Thu Feb 13, 2020 3:44 am; edited 1 time in total
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Thu Feb 13, 2020 3:43 am quote
znomit wrote:
Stromrider wrote:
Rider weight also plays a part as will aerodynamics
Isn't rider weight irrelevant apart from its impact on aerodynamics?
Struck ... here we talk about me.
(125 kg x 1.88 mt.)
I think the 105 km / h indicated by my small wheelbarrow becomes 115 km / h with a driver weighing 70 kg (average) and less corpulent.
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Thu Feb 13, 2020 2:12 pm quote
Attila wrote:
I think the 105 km / h indicated by my small wheelbarrow becomes 115 km / h with a driver weighing 70 kg (average) and less corpulent.
Yes, but I presume you are the same density as the rest of us humans, so with your corpulence goes greater dimensions. So we still don't know how much of the reduced top speed is due to aerodynamics and how much due to added friction in the bearings.

My personal opinion is that weight makes no difference to top speed, just the time it takes to get there, on a level road (as long as tyres are inflated to match the weight, so there is no extra deforming). I don't believe there will be enough extra friction in the wheel bearings to make a difference.
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Thu Feb 13, 2020 2:47 pm quote
Mike Holland wrote:
Attila wrote:
I think the 105 km / h indicated by my small wheelbarrow becomes 115 km / h with a driver weighing 70 kg (average) and less corpulent.
Yes, but I presume you are the same density as the rest of us humans, so with your corpulence goes greater dimensions. So we still don't know how much of the reduced top speed is due to aerodynamics and how much due to added friction in the bearings.

My personal opinion is that weight makes no difference to top speed, just the time it takes to get there, on a level road (as long as tyres are inflated to match the weight, so there is no extra deforming). I don't believe there will be enough extra friction in the wheel bearings to make a difference.
So true! If you have an extra few pounds it will increase the traction. Better for you.

Often times I find myself skidding because of my lightweight.
Molto Verboso
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Thu Feb 13, 2020 3:00 pm quote
znomit wrote:
Stromrider wrote:
Rider weight also plays a part as will aerodynamics
Isn't rider weight irrelevant apart from its impact on aerodynamics?
In this case I think it would

A2C25417-54A1-4394-B604-EE60D887E210.jpeg

Veni, Vidi, Posti
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Thu Feb 13, 2020 3:02 pm quote
super-fly wrote:
znomit wrote:
Stromrider wrote:
Rider weight also plays a part as will aerodynamics
Isn't rider weight irrelevant apart from its impact on aerodynamics?
In this case I think it would
There you go extra traction.
Veni, Vidi, Posti
LX190, Primavera
Joined: 12 Oct 2007
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Thu Feb 13, 2020 3:09 pm quote
super-fly wrote:
znomit wrote:
Stromrider wrote:
Rider weight also plays a part as will aerodynamics
Isn't rider weight irrelevant apart from its impact on aerodynamics?
In this case I think it would
The suspension is bottomed out, reducing the CSA of the scooter. Drag of the scooter is hence minimal.
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Thu Feb 13, 2020 4:41 pm quote
I feel so sorry for that poor scooter. There should be an SPCS!
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Yamaha Tricity 155 Urban 2019 - MV Agusta 125 RS 1956 - Moto Guzzi Airone 250 Sport 1951
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Fri Feb 14, 2020 12:52 am quote
OMG ... I'm not that big ... it's still true that a scooter has limits, sometimes i think i'm too big for my little 3-wheeler (it's the size of a Piaggio Medley) or just smaller and shorter.

Veni, Vidi, Posti
Lx 50 4T, GTS 250, S 150 (Missing in KS), Something Chinese
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Fri Feb 14, 2020 8:14 am quote
Mike Holland wrote:
I feel so sorry for that poor scooter. There should be an SPCS!
What is the meaning of SPCS?
Hooked
'81 P200E, '80 P200E, '64 V90 and 3 Ciaos
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Location: Tucson, AZ
Fri Feb 14, 2020 9:30 am quote
Max6200 wrote:
Mike Holland wrote:
I feel so sorry for that poor scooter. There should be an SPCS!
What is the meaning of SPCS?
Society For the Prevention of Cruelty to Scooters.
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2016 Vespa GTS300ie abs/asr/ess Settantesimo '70'
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Fri Feb 14, 2020 9:40 am quote
Mike Holland wrote:
Attila wrote:
I think the 105 km / h indicated by my small wheelbarrow becomes 115 km / h with a driver weighing 70 kg (average) and less corpulent.
Yes, but I presume you are the same density as the rest of us humans, so with your corpulence goes greater dimensions. So we still don't know how much of the reduced top speed is due to aerodynamics and how much due to added friction in the bearings.

My personal opinion is that weight makes no difference to top speed, just the time it takes to get there, on a level road (as long as tyres are inflated to match the weight, so there is no extra deforming). I don't believe there will be enough extra friction in the wheel bearings to make a difference.
The greater the mass you are moving the more power is required to do so irrespective of the speed you are trying to move it at. This will affect top speed because the power of a scooter is finite and cannot increase to accommodate a higher mass. Try running with an empty wheel barrow. You can go quite fast. Then try running with it well loaded, you cannot achieve the same speed no matter how hard you try because your muscle power is finite. On your scooter, if the increased mass (whatever it is, human, a load of rubbish etc) is less aerodynamic, that too will alter the top speed. How much the top speed is affected will vary depending on how much the mass of the scooter increases. The more weight the scooter carries the less likely the variator is to engage it's top ratios under load at full throttle. Just saying. It's just the laws of psychics.
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