Keep your ride safe when you're on the go with the Kryptonite Kryptoflex 815 Key Cable Lock with FlexFrame Bracket. Easy to carry with you, this lightweight bike lock adds a deterrent to thefts out for a quick grab when you're running errands, and is easy to stash in a pocket when you're on the run. The lock uses a key, instead of programmable code, making it more difficult for bike thieves to crack the lock. The lock its self features an advanced cylinder that provides greater protection from picking, and rotates 360-degrees for easier handling during lock up and removal. This model includes the Transit Flexframe-C transportation system that can attach to your bike frame, making it easy to always have a lock with you. As with any lock, the KryptoFlex 815 is not 100% theft proof. At 8-milimeters it makes for a great quick option when running errands, but if you're in an area prone to bike thieves we'd recommend stepping up to a burlier lock, or pairing this alongside a bigger lock for extra protection for your pride and joy.