The OnGuard Bulldog Combo STD DT U-Lock offers dependable, keyless protection with its user-settable 4-digit combination lock. Its 13 mm hardened steel shackle provides exceptional resistance against cutting and prying attacks, while the included 4 ft fully coated braided steel cable extends coverage to secure both frame and wheels. The X2P Double Bolt system locks both sides of the shackle for enhanced strength and anti-twist security. A thick rubber coating prevents scratches, and the included all-tube mounting bracket makes it easy to transport. Designed for daily riders seeking reliability and convenience, the Bulldog Combo DT is ideal for medium-risk environments. Keyless Convenience: 4-digit user-settable combination system eliminates the need for keys, offering quick setup and reliable operation for everyday commuting or campus use. Extended Versatility: Includes a 4 ft vinyl-coated braided steel cable to lock both bike frame and wheels together, providing added reach and flexibility when securing your ride. Reinforced Protection: 13 mm hardened steel shackle resists cutting, sawing, and leverage attacks, ensuring dependable, long-term performance in urban and suburban settings. Dual Lock Security: X2P Double Bolt system secures both sides of the shackle to resist pulling and twisting, delivering superior strength against theft attempts. User-Friendly Mount: Comes with an all-tube mounting bracket for on-bike transport, keeping your lock accessible and secure wherever you ride.