The OnGuard Bulldog STD LM U-Lock is built for durability and convenience, balancing a strong 13 mm hardened steel shackle with an ideal mid-size frame fit. The X2P Double Bolt Mechanism secures both sides to resist pulling and prying, while the Z-Cylinder prevents bumping, drilling, and picking. Rubber-coated crossbar guards against scratches, and the standard shackle length offers flexible locking for various racks and posts. **Dimensions: locked length 280 mm (11.0 in), crossbar width 180 mm (7.1 in), crossbar thickness 35 mm (1.4 in).** Includes five laser-cut keys (one with LED light) and a universal bracket for transport.
- Dual locking: X2P Double Bolt Mechanism secures both sides of the shackle, adding superior strength against twisting, pulling, and prying attempts.
- Flexible fit: 280 mm x 180 mm frame (11.0 x 7.1 in) accommodates most racks and posts, giving versatile options for urban or e-bike riders.
- High-strength steel: 13 mm hardened steel shackle resists cutting, impact, and leverage attacks while maintaining balanced weight.
- Tamper-resistant: Z-Cylinder core defends against bumping, drilling, and picking to deter professional theft tools and forced entry.
- Keys and bracket included: Comes with five laser-cut keys (one with LED light) and a universal mount bracket for quick access and storage.
