Locks/Security

OnGuard's Bulldog Mini is always ready for a ride. This small U-lock is as strong as larger locks, yet much more compact. The 13mm-thick hardened steel and OnGuard's stout X2 double-bolt lock resist cutting, picking, pulling, bumping, and drilling. And you can carry it on your bike with the included bracket, or easily stow it in a pack, or even your pocket. This mighty mini also comes with five keys, including OnGuard's Microlight key which has a built-in light.

- 3mm hardened steel links for moderate security lockups - Includes easy to install transport bracket for hassle free transportation - Easy to use dials with highly visible digits that provide a high level of ergonomics - Compact and easy transport - Product dimensions: Length 85cm - Product weight: 2.18 lbs

Serfas' unique Puck Lock uses 3mm hardened steel with stainless steel rivets that allow it to fold up into a circular puck shape. It expands to 25-inches and is vinyl-coated so it won't scratch your frame. Serfas also includes a bike mount with a quick-release holder so you'll never drop the puck.

- Easy-Click Locking - Ergonomic dials for ease of use - New easy to use reset design - Included bracket to easily carry on a bike (-03, -06)

Protect your bike with Giant's SureLock Protector LS U-Lock. It boasts a heat-treated, hardened-steel shackle that's a half-inch thick, as well as a pick and drill-resistant keyed lock. It's 11.5 inches long, so you have room to add a wheel or your helmet. This tough lock includes five laser-cut keys, one of which features a powerful LED light. The shackle is vinyl coated so it won't scratch your bike and it comes with a handy carrying bracket that fits almost any bike tube so you'll never have to leave your lock behind.

This is it. The big boy of locks. Use Giant's SureLock Force 1 Chain Lock in the sketchiest areas to secure your prized possession. This beefy lock uses 10mm-thick titanium-enforced steel links with a hardened-steel double-locking shackle that provides maximum security. The high security, pick and drill-resistant lock cylinder uses a laser-cut key for the ultimate in protection. Encasing the chain is a water and heat-resistant cover that won't scratch your bike's finish.

Park your bike with peace of mind when you use Giant's Surelock Protector 1 combo pack. The U-lock features a hardened steel shackle to resist cutting attacks, and uses an XP4 Quattro locking mechanism for unequaled strength. It comes with five keys, one of which features an LED light. The included steel cable loops through your wheels and makes sure that potential thieves walk on by. To keep things simple, Giant included a lock mount that fits nearly every bike frame.