I bought one last week, and took it for long test drive last night, I agree with you it vibrates above 60 and I feel cheated on this one. Also due to thin tyres, it skids a bit on curvy turns. The price was quite cheap for me and I fell in love with the looks. I bought a red and black combo. Lets hope it goes smooth ahead.
I had a Hero Honda Passion before since 2005, and it was the best bike I had. This vibrating thing is new and scary for me. Is it normal nowadays? Also the average is around 65. The Self Start is already turning a bit weak.