after reading http://wiki.bcsportbikes.com/index.php?title=Motorcycle_Security, I bought a disc lock today. The article says disc lock is to prevent quick "grab 'n go", but it got me thinking: the built-in steering lock serves the same purpose as well (right?), is the steering lock very easy to break, so that's why ppl use disc locks to stop qucik grab 'n go?