Locks/Security

The Beast offers OnGuard's highest security rating for serious protection in high-risk areas. Its titanium-reinforced, 12mm-thick hexagonal links are nearly impossible to cut or break, while the hardened-steel shackle resists picking and boasts two steel pins that engage at both ends to create a redundant, secure system. This lock comes with five keys, including one with a built-in light. The Beast is so strong, it's also approved for use with motorcycles and scooters.

- The ideal solution to bicycle wheel theft - Includes a front and rear wheel locking skewer, with each lock operated using a unique multi combination key, to ensure the security of your wheels at a fraction of their replacement cost

Steel Plated Key Lock - Hardened Steel Plates - Stainless Steel Rivets - Vinyl Coated - Includes Bike Mount With Quick Release Lock Holder - Lock Length: 2.5 Feet - Plate Link Thickness: 5.5mm - Weight: 554 Grams - Key Type: Internal Cut

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.

OnGuard's Bulldog DT pairs a tough-as-nails U-lock with a sturdy steel cable for increased security. The 13mm hardened steel shackle resists cutting, and OnGuard's stout X2 double-bolt lock mechanism is pick, drill, bump, and pull-resistant. The 9" shackle, combined with 4' braided steel cable lets you lock bike to a standard parking meter post without removing your front wheel, making lock-up faster, easier, and more secure. This great U-lock also comes with five keys, including OnGuard's Microlight key which has a built-in light. - All OnGuard locks feature integrated covers for protection from moisture and dirt. - OnGuard locks feature plastic, rubber, or vinyl at all contact points to protect your bike's finish. - Shackle Dimensions: 115mm x 230mm (W x H x Dia) (4.5" x 9") x 13mm (0.51") D - Cable Dimensions: 120cm x 10mm (4' x 0.39")

When security is your priority, the Serfas U-Lock has you covered. Its hardened steel and double dead bolt construction will keep your bike safe and secure, while a durable rubber coating protects your finish. The additional 4-foot coiling cable provides extra locking options. Plus it includes a mounting bracket so you'll never leave home without it.

Like a multitasking guard dog, OnGuard's Bulldog DT is a U-lock/cable combination that keeps your bike super safe. The 1/2-inch hardened steel resists cutting and OnGuard's stout X2 double-bolt lock mechanism is pick-proof. Plus, the included cable is 4 feet long, so you can lock both wheels and the frame without any disassembly, making lock-up faster, easier and more secure. This great U-lock also comes with 5 keys including OnGuard's Microlight key, which has a built-in light.

Like a multitasking guard dog, the Bulldog DT is a U-lock/cable combination that keeps your bike super safe. The 1/2-inch hardened steel resists cutting and OnGuard's M-Cylinder resettable combination lock gives you key-free convenience. Plus, the included cable is 4 feet long, so you can lock both wheels and the frame without any disassembly, making lock-up faster, easier and more secure.

OnGuard's Bulldog LS (Long Shackle) offers a large locking zone, plus OnGuard's high-security 13mm-thick hardened-steel construction and stout X2 double-bolt lock, which resists cutting, picking, bumping, and drilling. And with the included mounting bracket, your Bulldog can come along for every ride. This great U-lock also comes with five keys, including OnGuard's Microlight key which has a built-in light.

OnGuard's Bulldog Mini DT is always ready for a ride. This small U-lock/cable combination is strong, compact, and smart. The 13mm-thick hardened-steel shackle and OnGuard's stout X2 double-bolt lock resists drilling, picking, bumping, and pulling for serious security. Plus, the 4-foot-long cable lets you lock both wheels and accessories with ease, too. The Mini includes a mount for carrying it on your bike and fits in a pack, too. This mighty mini also comes with five keys, including OnGuard's Microlight key which has a built-in light.

OnGuard's Rottweiler locks provide years of unwavering protection. This lock comes in several different cable widths, offering various levels of security. All are easy to use and tough. Plus, they all boast OnGuard's reliable, safe X2 double-bolt locking mechanism that resists drilling, picking, pulling, and bumping. It comes with five laser-cut keys, including OnGuard's Microlight key with a built-in light.

• Unique combination U-lock • 4-digit resettable combination • 12mm-thick hardened steel shackle • 165mm shackle length • Rubber coated shackle • 6ft-long steel braided cable included

When security is your priority, the Serfas U-Lock has you covered. Its hardened steel and double dead bolt construction keep your bike safe, while a durable rubber coating protects your finish. It even includes a mounting bracket so you'll never leave home without it.

Twisted steel cable protected by hardened steel armor to resist attack from bolt and wire cutters redesigned with a combination.

OnGuard's Bulldog Combo STD will guard your bike day and night. It boasts a 13mm-wide hardened-steel shackle and OnGuard's stout X2P Double Bolt design that resists drilling, picking, bumping, and pulling for serious protection. This Bulldog sports a resettable 4-digit combination plus a mounting bracket so you can bring the lock along for every ride.

OnGuard's Bulldog Medium is always ready for a ride. This U-lock is as strong as larger locks, yet 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 lock also comes with five keys, including OnGuard's Microlight key which has a built-in light.

OnGuard's Bulldog STD boasts an 13mm-thick hardened-steel shackle and OnGuard's stout X2 double-bolt lock that resists drilling, picking, bumping, and pulling for serious protection. And, thanks to the included mounting bracket you can bring the Bulldog along for every ride. This great U-lock also comes with five keys, including OnGuard's Microlight key, which has a built-in light. - All OnGuard locks feature integrated covers for protection from moisture and dirt. - OnGuard locks feature plastic, rubber, or vinyl at all contact points to protect your bike's finish. - Shackle Dimensions: 115mm x 230mm (W x H x Dia.) (4.53" x 9.06") x 13mm (0.51") D

Popular shackle length with X2P Double Bolt protection combined with improved user-settable steel ball click-combo lock system. - Lock dimensions: 3.55 x 9.46 feet

The lightest U-lock on the market. The Carlito’s compact design offers security that can easily fit in the pocket of your jeans or messenger bag and not weight you down. Product Features: - Security level 4 - Silicone overmold - Shackle size: 75mm x 127mm - 3 keys included - Weight: 395g (Under 1lb)

This Hooligan is 40 inches of hardened chain wrapped in a soft nylon sheath. The lock head is covered in soft-touch silicone to prevent dinging your bike. Lock up the frame and either front or rear wheel to keep your bike safe. Long enough to be worn around your torso but will fold down small enough to fit in a bag. Product Features: - Security level 6 - 7mm diameter steel chain - 40-inch in length - 3 keys included - Weight: 2lb 12oz

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.

Popular shackle length with X2P Double Bolt protection combined with improved user-settable steel ball click-combo lock system with included 4 foot fully coated, braided steel cable for more locking options.

• Unique combination U-lock • 4-digit resettable combination • 12mm-thick hardened steel shackle • 165mm shackle length • Rubber coated shackle

• High-security 20mm ultra-thick braided steel cable • 5 digit resettable combination • Steel tumbler • Rubber coated cable • Cable length: 4.5 feet

• Solid hardened steel u-lock with durable double dead bolt locking mechanism • 150mm shackle length • Includes 3 keys (1 with LED light and 2 standard) • Steel encased tumbler mechanism • Dust cover keeps locking cylinder clean • Multiple channel key offers many different key variations • Rubber coated durable finish • Includes bike mount with quick release lock holder

Secure - Prevents theft instead of standard 9 mm quick-release skewers Quick Assembly - Use proprietary key on frame dropout Construction - Stainless springs with chromoly axle

OnGuard's Bulldog STD LM boasts an 11mm-thick, hardened-steel shackle and OnGuard's stout X2 double-bolt lock that resists drilling, picking, bumping, and pulling for serious protection. And thanks to the included mounting bracket, you can bring the Bulldog along for every ride. This great U-lock also comes with five keys, including OnGuard's Microlight key which has a built-in light. - Dimensions: 4.5 x 9 inches - All OnGuard locks feature integrated covers for protection from moisture and dirt. - OnGuard locks feature plastic, rubber or vinyl at all contact points to protect your bike's finish.

With OnGuard's Doberman Combo lock, all you need is your bike, the lock, and a number you can remember. This combination lock uses four numbers and can be reset any time. It's made from a strong steel cable covered with tough vinyl to protect both itself and your bike. The Doberman Combo is also self-coiling for easy transport.

Tired of fumbling around with two separate lock pieces? Look no further. The Pivot is one sturdy lock, that stays attached even while in the unlocked position. It comes with two keys, and a soft-touch silicone overmold on the base of the lock for extra grip, bike protection and style. Product Features: - Security level 6 - One-piece design, Key remains in core while unlocked - Shackle size 87mm x 165mm - 2 keys included - Weight: 2 lb

If you dread keys, the Shackleton is the ticket. You can program in your own four digit code for easy opening each time. Silicone overmold and quick, push-button release shackle will protect your bike in most environments. Product Features: - Security level 5 - Silicone overmold and frame mount included - Shackle size: 96mm x 167mm - Keyless combination wheels - Program your own four digit code - Weight: 2 lbs