The fuel efficiency, or miles per gallon (mpg), of a 125cc motorcycle can vary depending on several factors, including the motorcycle's make and model, engine design, riding conditions, maintenance, and riding style. Generally, 125cc motorcycles tend to be fuel-efficient due to their smaller engine size. However, it's important to note that individual mileage may vary.
As a rough estimate, a 125cc motorcycle can achieve fuel efficiency ranging from 60 mpg to 100+ mpg, depending on the factors mentioned above. Some fuel-efficient models and scooters with advanced engine technology and optimized designs may even exceed these estimates and provide higher mileage. Conversely, aggressive riding, carrying heavy loads, or consistently riding at higher speeds can reduce the fuel efficiency.
To get a more accurate estimate for a specific 125cc motorcycle, it's best to consult the manufacturer's specifications or look for reviews and real-world mileage reports from owners of the particular model you're interested in.