On my work bike I've got Pitlocks on my Front wheel and seatpost plus Kryptonite EVO. For the rear just use 2 tensioners. If stealing bikes is their thing they'll have a full toolkit anyway. Years ago I knew a few folks that stripped whole rigs down. It's ****in crazy to think no one has developed things similar to the Pitlock, if it were improved and applied to all components bikes would be a lot more secure. Go to a specialty bolt store and replace as many bolts as you can with Torx versions maybe even Security Torx. Or pick more public locking locations... Sam