The Kuat Bottle Lock is possibly one of the most innovative lock ideas that no one ever thought of before. Housed in a beautiful bottle shaped case that simply plants itself into a water bottle cage is a 8mm thick braided steel cable. Pull the cable out to lock both frame and wheels around whatever object you want. A convenient little underside storage compartment is built into the “bottle” housing: besides being less than a pound (and super secure), the lock serves as a cool spot to carry/hide some valuables. Comes in the ever-stylish black, white, or pink color ways.