I have a Yamaha Libero G5. Last 10 yrs I am using it very roughly. I got very good knowledge about this bike. It like my friend. When I was used it 3yrs its age but I got top speed 110 miles/hr., milege about 55km/Liter. There no bad sound from cylencer. I feel very comfort when I use it.It has very good controlling power, I can use it at any season, any types of road condition. Its looks nice for professional and long time user.