Currently my two bikes are locked to both eachother and a standup bike rack with three other bikes locked to it. I've considered getting a Kryptonite Stronghold Security Anchor, but if they're going through all the trouble of breaking into my garage (they'd need to crash a truck into the barn style doors to get in the way I have them secured) setting off my alarm, and probably getting shot by me if they got away with them alive I figure they can have them.