Bulldog. The name suits the massive compact U-lock from the lock specialists at Onguard well. In fact, there is more to its robust appearance than just looks, but a bit of psychological warfare likely doesn't hurt when deterring bike thieves. Thanks to the onboard X2P Double Bolt locking system, the lock secures the shackle on both sides, providing high security against pulling, impact, and leverage forces. The compact shape and hardened steel of the shackle make the Mini-Bulldog even more secure. As an ideal companion for the city, this small Onguard lock is perfect.