Prevent bike theft.....How?

[bajaj151]

I heard people using disk lock, chain lock, xenon security system etc..

Please suggest....

 

[Vyom]

I lock my bike like this:

*www.woosk.com/wp-content/uploads/2008/09/bikelock.jpg

Never fails.

 

[Nipun]

I lock my bike like this:

*www.woosk.com/wp-content/uploads/2008/09/bikelock.jpg

Never fails.

You're clearly lying!
That's not how you lock your bike, that's how you bike your lock!

- - - Updated - - -

OP: Using an additional lock like disk lock will help, but if someone is adamant on stealing it, nothing will stop him. Remember, such locks will add to additional work for you, too. In my opinion, disk locks are not as easy to open or shut(with a key) as other locks are. Also, they can get annoying as they rust or jam because of rains. The "security system", unless I am inferring it wrong, would drain the battery too fast. That was the case with our bike, at least!
Hope this helps.