Don't compromise on security when it comes to your bike. Fortitude delivers top-notch safety with 5mm hardened steel bars and a tamper-resistant disc cylinder lock designed to stand up to prying, cutting, and picking. This bike lock's 360Adeg rotating lock head makes securing your bike quick and easy from any angle. Then, when you're ready to roll, Fortitude folds to fit in the included carrier, which you can mount to your frame to keep your lock with your bike at all times.