After searching and watching soo much review, I decided to purchase Honda activa 3G because of his popularity and Trust, this month I got my Honda activa 3G.i quite happy when I got the scooty but after 2days use some type of knocking sound coming from the engine box, I took mt scooty to an authorised service center they checked my scooty and told me that is due to RPM problem, then told that if your Scooty set on Low RPM then this type of Knocking soucd will come, it means that this is an manufacturing defect, same type of problem is happen with my friend new scooty, same type of knocking sound is coming from scooty, I didnt though that such type of problem I will face with my new honda activa 3G, please try to resolve this problem as soon as possible!