Aprillia sr 150 is most powerful scooter it has a 150 cc engine it produces 10 bhp of power , it has a simple speedo meter and a basic fuel gaugae but interms of look it has a nice grapics and nice looks like honda dio , it is stable in crusing in the speed of 80 km per hour but it has a low fuel economy of 30 kmpl , Over all it is nice choice of youths.