I purchase by CBZ Extreem on 2010 March.
It’s from the most trustworthy company Hero Honda.
The shocker and engine sound is a good one.
I am using this for more than 5 years but never faced any issue on road.
For last 2 years everyday running office to and from around 60 kms without any issue.
Just take service at correct frequency it’s the best.
The Service Center of HeroHonda is also the best I have seen. Handover your bike to them and collect at the time and again forgot of any issues.
Till now I am getting around 45 Km/ltr