A lot of thefts are done by two blokes on a moped, one sits on your bike the other pushes him with the ped.

I carry a padlock in my camelback and stick it through the rear disk. Bike can't be pushed or ridden away.

Quick, easy and cheap, like me, apart from the quick bit

 

Don’t fit an ignition as the thieves will know exactly where to start if they want to nick it. PM Kevinyorks on here, he makes a very discreet plug an play cut out switch which can be hidden.

 

Best approach - dont let it out of your sight. An unnatended exc is a scum magnet.