Kryptonite Kryptolok Standard Bike U-Lock, 12.7mm Shackle, 4ft Cable | Heavy Duty Anti-Theft Bicycle Lock with Mounting Bracket, 2 Keys & Disc-Style Cylinder, Sold Secure Silver Certified

BUILT TO LAST. The Kryptonite Kryptolok Standard U‑Lock is constructed with a 12.7mm hardened performance steel shackle to help resist cutting and leverage attacks, while a durable vinyl‑coated protective sleeve prevents scratches to your bike’s frame and preserves its finish

DOUBLE-DEADBOLT DESIGN. Locks the shackle on both sides of the crossbar for enhanced holding power and resistance against twisting and pulling. Certified by Sold Secure Silver, it also includes a high‑security disc‑style cylinder to resist picking and drilling

VERSATILE SECURITY WITH 4‑FT CABLE. Includes a heavy-duty 10mm x 4‑ft (120 cm) double‑loop security cable ideal for securing your front wheel, helmet, or accessories. Together with the U‑lock, it is perfect for securing bicycles and e‑bikes at work, school, or around town

STANDARD, COMMUTER-FRIENDLY SIZE. This U-lock features interior locking dimensions of 4” x 9” (10.2cm x 22.9cm) and a total lock weight of approximately 3.65 lbs (1.66 kg), providing a versatile locking reach for thicker poles and racks. Weather-reated components help protect against rust and outdoor exposure for reliable everyday use

EASY MOUNTING BRACKET INCLUDED. Comes with a secure FlexFrame‑U bracket that attaches directly to your bike frame for hassle‑free transport—allowing you to carry the lock easily with no backpack or lock bag required