It depends on how much you want and there are parts for that engine. A high performance air
filter should be the first mod on any engine. Free flowing exhaust on a dirt bike will add HP as long as you are ok with the louder exhaust and it is allowed where you ride. Depending on the make, camshafts, stroker kits and even turbo kits are available or can be built yourself with parts available.
Once you've increased your power a rear gear change will allow you to pull a taller gear, giving you a higher top speed.
i have seen them go about 40-45.
what is the difference between 125cc and 150cc quads
i have seen them go about 40-45.
Atv's and Quads are the same thing. Speed depends on the make, model and engine size.
When I ride I notice that I go faster on a motorbike than I do on an ATV.
65kph as per Specs
No its Chinese made.
The average price for a Chinese ATV can vary. Typically, the price range for a Chinese ATV can be anywhere between seven hundred dollars and eight hundred dollars.
This all depends entirely on what the person is looking for....their preference.
Approx. 45mph is the top speed of this machine.
MPG stands for "Miles Per Gallon", That's a unit for fuel consumption, not Speed
3-12 years old=49-150cc 13-16=150-300cc 16+=what ever cc.