What is the real mileage of Hero Xtreme?

Hero Xtreme returns an average fuel mileage of 50kmpl on city roads and up to 60kmpl on highways. The combined mileage provided by this bike is 55 kmpl. The bike has a top speed of 114kmph and it can covers 0-60 kmph in 5 secs. It is fitted with a 149.2cc air-cooled, 4-stroke single cylinder engine that produces 14.2Bhp of power at 8500 rpm and 12.8Nm of torque at 6500 rpm.