Why Choose the KryptoFlex 815 as Your Secondary Cable Lock?

The Kryptonite KryptoFlex 815 Cable Lock delivers lightweight, flexible security in a package compact enough for a jersey pocket or saddle bag. Built around an 8mm braided steel cable and a four-digit resettable combination lock, it gives you keyless protection for casual stops, coffee runs, and rides where backup security matters but extra weight does not. The five-foot cable length threads through wheels and frames with enough slack to wrap most bike racks and posts.

A vinyl protective coating keeps the cable from marking your frame or paint during contact, and the combination reset feature lets you personalize the code rather than memorizing a factory default. At 8mm, this is Kryptonite's lightest option in the KryptoFlex range, making it the right pick as a secondary lock paired alongside a U-lock or chain, or as a standalone for low-risk stops where speed and convenience are the priority.