Kwikset High Security Bicycle U-Lock, Hardened Steel, 1 Pack

The Kwikset High Security U‑Lock delivers motorcycle‑grade (ART4 certified) bike security in a compact, commuter‑friendly package. A rigid U‑lock structure and thick 16 mm hardened steel shackle resist cutting, sawing, and leveraging attacks, while a 7‑pin cylinder provides strong everyday keyed security, ideal for riders needing a bicycle lock or bike lock heavy duty anti theft setup. Bike‑friendly protective surfaces reduce frame scuffs, and the compact form makes it easy to carry on daily rides and commutes.