OnGuard Brute LS U-Lock – 16.8 mm (0.66 in) Hardened Steel Long Shackle Bike Lock, 111 mm × 260 mm (4.53 in × 10.24 in) Interior Dimensions, X4P Quad Lock Mechanism with Mount Bracket

The OnGuard Brute LS U-Lock is designed for riders who demand maximum bike security in urban and high-theft environments. Featuring a massive 16.8 mm (0.66 in) TriRadius hardened steel shackle and advanced X4P Quad Lock mechanism, the lock secures the shackle on four sides to resist cutting, prying, twisting, and leverage attacks. The long shackle design provides extra reach for securing bikes to racks, posts, or multiple frames while maintaining exceptional strength. A rubber-coated crossbar and shackle help protect bike finishes from scratches, while the included mounting bracket allows easy on-bike transport.

• X4P Quad Lock Security: Four-sided locking mechanism secures the shackle in multiple positions for maximum resistance against pulling, prying, and leverage attacks.
• 16.8 mm (0.66 in) Hardened Steel Shackle: TriRadius hardened steel construction delivers exceptional resistance against bolt cutters, saws, and twisting tools.
• Extended Long Shackle Reach: 111 mm × 260 mm (4.53 in × 10.24 in) interior dimensions provide generous clearance for locking bikes to racks, rails, or larger posts.
• Rubber-Coated Protection: Co-molded crossbar and protective coating help prevent scratches and damage to bike frames and components.
• Complete Security Kit: Includes five laser-cut keys and a universal mounting bracket for convenient bike transport.