How much faster is a 250cc 2-stroke than a 125cc 2-stroke?

Question

Can someone tell me? It can't be double. That'd be 135+ MPH.

Answer 1

despite what people think the 125 is a no slower flat out but the 250f has more torqe and more useable power so on the track its faster if that makes any sense

Answer 2

They are both about the same, 65 to 70 mph. The big difference is how fast they get to that speed. The 250 will do it quite a bit quicker.

Answer 3

Its not double no.

Also, the top speed is not important. You will rarley [ if ever ] get it flat out in top.

Its low and mid end grunt you want.

Answer 4

No, you cant double the top speed. Its about horse power. The 250 does not have double the horse power, only 1.5 times better. (about)

Answer 5

Well considering a 125 2stroke competes with the 250 4strokes. The average 125 will do around 60-65mph. The average 250 2stroke will do anywhere from 70-90 or faster give or take the bike and the rider. 250 2strokes are radical bikes. It would not be 135+mph. Just because of the bigger engine you also have to factor the bike is heavier and bigger.