At present, this is the most powerful engine in two wheelers launched in India. This R15 is powered by 150cc engine which produces 17bhp and ensures that this engine has greater power. The mileage is also pretty decent which ranges from 35 to 45 kmpl. In addition this has liquid cooled engine which is widely used in four wheelers. On the whole, R15 is powerful and attractive but little heavier in cost.