I always lock mine behind the locked garage door, front caliper lock, fork lock, ignition lock, big chain lock on rear tire for mine and my mrs bike then a cable lock thru the frames and wheels of each of the bikes plus the factory alarms with sirens.....We live in Germany...doesn't take much to steal a bike and run it into 3 other countries within an hour....once it's gone and in another country ...good luck in ever seeing it again!