The Bike Rack by itself provides minimal security for your bicycle. In other words, the safty of your bike will be determine by those who use it or walk past. If those cyclists want to damage your bike and steal your accesories, there's not much you can do for the bike rack cannot provide any protection. If someone who uses your bike rack likes your ride, it could take about 5 minutes with power tools to break your U-Lock or chain. Use at your own risk.