BullDog Series U-Lock - 3.5 x 7, Keyed

The OnGuard Bulldog series u-locks are your top choice for bike security. They come with X2P Double Bolt lock mechanisms and robust 13mm (0.51”) hardened steel shackles, providing full-circle protection. The Bulldog u-lock offers a free 1-year anti-theft guarantee. It has an impressive 4.6 tons of pull strength and is resistant to drilling and picking. The hardened ultra steel shackle has a reinforced sleeve over the crossbar and cylinder, adding extra security. Specs include a 7-inch length, 13mm diameter, no included cable, 3.5-inch shackle width, a keyed lock style, and an advertised weight of 2.35 lbs.

Using your OnGuard Bulldog series u-lock is easy. First, find a secure object like a bike rack to lock your bike to. Insert the shackle through the bike frame and the object, then lock it with the key. When you're done, simply unlock it and remove the shackle. As for maintenance, keep the lock clean and dry. If it gets dirty, you can use a soft cloth to wipe it down. Avoid exposing the lock to extreme temperatures or harsh chemicals as this can damage it. Remember, this lock comes with a 1-year anti - theft guarantee, so make sure to register it if you haven't already. Also, always double - check that the lock is properly engaged to ensure maximum security.