The highest speed of this motorcycle is 135 kilometers per hour. It is recommended not to test the speed of the motorcycle on the road, as it is very dangerous and illegal. It is recommended to wear protective gear and a helmet when riding, and to wear professional riding gear to greatly improve safety during the riding process.

The Benelli 250 uses a 250cc single-cylinder water-cooled four-stroke engine, which has a compression ratio of 11.2 to 1, a maximum power of 18kw, and a maximum torque of 21 Nm. The maximum power and torque occur at 9000 and 7000 rpm, respectively.

This engine also uses a mainstream electronic fuel injection system.

Most high-end motorcycles use electronic fuel injection systems, which provide stronger power and better fuel economy.

In fact, the working principle of a motorcycle's four-stroke gasoline engine is similar to that of a car engine.

The engine has four strokes, including the intake stroke, compression stroke, power stroke, and exhaust stroke.

During the operation of the engine, these four strokes are continuously repeated.

However, the engine only outputs power during the power stroke. The other three strokes do not output power.

When the engine is in the power stroke, the intake and exhaust doors will be closed, and the spark plug will ignite the combustible mixture. The burning combustible mixture can push the piston down to output power from the engine.