I trust my Xena disk brake lock.
It's audible alarm falses quite often and kills it's battery, but the lock itself would prevent anyone from rolling the bike away. They would have to lift it to get it. Not that that couldn't happen too.
As far as locks, it is best if you have two different types besides...as far as that "portion" of security, which is to secure it to an immovable object "--what ever that is..."! :newsmile107: