How fast will a 150 cc Chinese scooter with 12 inch tires go?

Well, as the subject line says..... I recently ordered one of these, and from my research, it'll go fast enough to safely keep up with surface street traffic without having to be driven with the throttle wide open in the city in which I live.

But in the claimed specs of this and all such scooters, there's more BS and uncertain answers than not. It can go "up to" 700 mph, it can get "up to".....3000 mpg. You get the idea. So does anyone have some fairly reliable numbers as to what I can expect as far as speed and mileage, no bullshit?

Please keep in mind what the question is and answer it if you can. If you can't, then don't. I am not interested in your opinion of such scooters, what I "should've gotten", how I can mod it go faster (I'm not going to mod anything on it) etc., etc. I've heard it. Don't be that guy. Someone will anyway, but just don't be him, please. This about speed and mileage, not how I should save to buy a used (insert XYZ brand of 200k cc rice rocket) or what your buddy's cousin's uncle found as far as getting a deal on one. Mileage, speed. Thanks!

The specs you've given are too vague. You'd need horsepower, weight, max rpm's, and if its limited mechanically or electronically in any way etc to properly gauge how fast it'll go.

I will say that I used to have a Yamaha 49cc scooter (my dad owns a yamaha dealership) and it would go max about 60 kpm, (37 mph) and that was at full throttle. However, apparently they limited the speed by placing some sort of restriction in the exhaust. My dad had one of the mechanics remove it, and after that it went about 75 kph (45 mph)

My best guess would be that your scooter would easily do 70 mph, but again its just a guess based on the engine size. Engine size really means nothing as a 1.2L car might only do 80mph but a 1.2L competitive tuned motorcycle will do 200mph.

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... Ahhh, I miss my old YZ250

Quote:

Originally posted by Sugarpie

... (my dad owns a yamaha dealership) ...

Sorry, no clue on a chinese scooter.

There's too many other factors to determine speed other than what we know. Also, more ccs doesn't necessarily mean more power.

I guess I'll know soon enough and will post the results here. I'm getting it between Friday and Sunday.

Is that how you're getting the girl you're giving coke to back to your place?

Quote:

Originally posted by Sugarpie

Is that how you're getting the girl you're giving coke to back to your place?

Fuck, that's Baller. I need to rethink my hair, lifestyle, and car... Coke and Chinese scooters is where it's at.

To many variables not accounted for to make an estimate. What for a transmission does it have, gear rations in the transmission if applicable, size of front and rear sprockets if it has them and if not size of front and rear pulleys if it is belt driven, horsepower, weight of machine and rider, and whether there is a restriction plate or governor on it.

It'll do an easy 45 without straining but I'd say she has a top speed of around 52.

Depends on how much Bai Jo you put in the tank......

Quote:

Originally posted by nightowl613

It'll do an easy 45 without straining but I'd say she has a top speed of around 52.

I should have sold you my old Yamaha.

Quote:

Originally posted by Sugarpie

The specs you've given are too vague. You'd need horsepower, weight, max rpm's, and if its limited mechanically or electronically in any way etc to properly gauge how fast it'll go.

I will say that I used to have a Yamaha 49cc scooter (my dad owns a yamaha dealership) and it would go max about 60 kpm, (37 mph) and that was at full throttle. However, apparently they limited the speed by placing some sort of restriction in the exhaust. My dad had one of the mechanics remove it, and after that it went about 75 kph (45 mph)

My best guess would be that your scooter would easily do 70 mph, but again its just a guess based on the engine size. Engine size really means nothing as a 1.2L car might only do 80mph but a 1.2L competitive tuned motorcycle will do 200mph.

lol ...thats not a fair comparison... power to weight ratio is alot better on a motorcycle

49cc are mopeds , most if not all have a ring in the exhaust to reduce the diameter of the pipe to reduce power.. this is mostly done because of the European market where a moped has a legal max speed and CC's , we used to drill them out all the time in the 90's...


you are right on the speed or atleast it should be close to that for a 150cc scooter , just remember that you may need a license to operate that thing in most countries that is considered a motorcycle.

Top speed is generally dependant on how high the cliff is that you'll be pushing it off after about 17 minutes of realising that it's a peice of chinese tat...

Depending on the torque/bhp you might get as high as 100kmph. A branded scooter would have about 12-15bhp I think so that kind of speed isnt out of the question, how long it takes to get to that speed and how much fuel it drinks at full throttle is anybodys guess.

Quote:

Originally posted by wampers74

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lol ...thats not a fair comparison... power to weight ratio is alot better on a motorcycle

Ok, then just use the horsepower numbers. A 1200cc motorcycle engine can put out about 160-170hp, where a 1200cc car engine may only put out 65hp. I understand what you're saying about power to weight, but its more than that, its also about power, if you gave the bike the 65hp engine and the car the 170hp engine, the car would probably be faster. Thus my point that he couldn't just give us engine size as it really means nothing.

Quote:

Originally posted by w74

49cc are mopeds , most if not all have a ring in the exhaust to reduce the diameter of the pipe to reduce power.. this is mostly done because of the European market where a moped has a legal max speed and CC's , we used to drill them out all the time in the 90's...

I thought thats what I said?

Quote:

Originally posted by w74

you are right on the speed or atleast it should be close to that for a 150cc scooter , just remember that you may need a license to operate that thing in most countries that is considered a motorcycle.

Apparently not. He says it only does low 50's.

depends on how big the ass is that's on it!

ok the smallest engine I ever had on a motorcycle was a 350 and it would do 70 just fine. and I'm a much bigger person in about 220lb. and it had no problems so I'd say the average weight of someone may be...you should be able to get at least 60 miles an hour. With out an open throttle.

I had a 250cc chinese scooter for a while. It struggled to do freeway speeds (only tried that once), but did beautifully on surface streets and wasn't noticably faster than a friend of mine's 150cc scooter. The 150 was probably the better machine, the air cooled engine was much simpler to maintain.

That said, almost all of the 150cc chinese scooters use the Lifan GY6 engine, or a clone of it, which is rated at 8.6hp @ 7000 rpm.

There's a great forum of scooter owners at http://scootdawg.proboards.com/

Quote:

Originally posted by Sugarpie

...
Ok, then just use the horsepower numbers. A 1200cc motorcycle engine can put out about 160-170hp, where a 1200cc car engine may only put out 65hp. I understand what you're saying about power to weight, but its more than that, its also about power, if you gave the bike the 65hp engine and the car the 170hp engine, the car would probably be faster. Thus my point that he couldn't just give us engine size as it really means nothing.

...

no the car will still be slower , even with a 160 hp engine...lol

bike @ 400lbs (excluding rider) with a 65HP engine gives you 6.1lb per HP

car at 2500lbs with a 160 hp engine gives you 15.1lb per HP , thats still over twice the ratio..

i do however agree , engine size is a very limited factor in how fast an vehicle goes , i just said the car vs bike isn't a fair comparison...

if you want to compare , take a lambo engine creating 750+bhp vs a formula 1 engine at 3.0 making as much with less then half the displacement...


johnryan42 , 8.6 HP on a 150cc is just ridiculous , not saying you are not right , it just shows you how inefficient those chinese engines are.

my 125cc dirtbike back in the 90's was dynoed at a little over 40 hp....

Not withstanding your weights, I understand what you're saying, but what I was trying to say all along was that engine size alone is not a good way to determine how fast a vehicle is.

Quote:

Originally posted by wampers74

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my 125cc dirtbike back in the 90's was dynoed at a little over 40 hp....

I find that unlikely, unless you did some work to it and it was a 2-stroke. The only four-stroke 125cc dirt-bikes I have every seen or heard of (TTR125 and KLX125 which are technically trail-bikes) only made 7.5-9hp stock, where as most of the two-strokes made around 33-35hp stock. Even the little mini-rocket (CBR125R, YZF-R125) street bikes only make about 13-15hp with the 125cc engines, and the mini cruisers (Suzuki Van Van, YBR125) are around 10-13hp.

And yes the Lifan GY6 only produces about 8.6hp. This is not bad for a stock 150cc four-stroke engine. Even the CRF150R, which is designed to race against 85cc two-strokes, only produces about 22hp stock. The trail version CRF150F makes a whopping 11.5hp.