What is faster 2-stroke or 4-stroke?

Answer 1

tht all depends on the type of chassis and engine set up. a 2 stroke is going to have a great advantage off of the start but will require more rpms to keep it going at highr speeds because 2 strokes produce lower torque at hihger rpms. 4 strokes on the other hand lack that initial punch of power right off of the line, but they have a much wider torque range also called a power band. This wide range of torque gives a 4 stroke the advantage in that they require a lot less shifting when leading into an out of corners. 2 stroke is more faster than 4 stroke,because it have only 2 combustions.

In general a 2 stroke engine will be quicker than a 4 stroke engine of the same displacement. The answer is a little more complicated than that if you look into the details.
a 2 stroke because its lighter and has more torque

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Generally, 2 stroke dirt bikes are much faster and lighter than 4 strokes, and have much more torque. But 4 strokes have more power and a higher top speed. For example, a 2-stroke 85cc dirt bike (like the YZ85) will be equal to a high performance 150cc dirt bike (like the CRF150R).