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A typical 250cc engine should have a compression ratio ranging from 9:1 to 12:1, depending on its design and intended use. For two-stroke engines, the compression ratio may be slightly higher, while four-stroke engines might fall within the lower end of this range. It's essential to consult the manufacturer's specifications for the specific engine model to ensure optimal performance and efficiency.

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1mo ago

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"250cc" refers to the engine displacement of a motorcycle or vehicle, specifically 250 cubic centimeters. This measurement indicates the size of the engine and is a key factor in determining the power and performance of the vehicle. Generally, a 250cc engine is considered suitable for beginner riders or those looking for a lightweight and manageable bike.


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Actually HP can only be estimated . he HP depends on a lot of factors about the motor.


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250 cc does not correllate to HP. Little 250 CC bikes are the fastest class of motorcyles--turbocharged, 10,000 rpm, high compression fuel injection running nitromethane--yikes! The most efficient engines would be very tiny but have all the ups and extras. Different 250cc engines put out anything from 1-100 horsepower. Essentially, it depends on how the engine is designed and what its intended purpose is.