Kryptonite's Evolution Series 4 1016 Integrated Chain is a 10mm-thick, six-sided link chain made of triple-heat-treated, boron-manganese steel for maximum strength. At over five feet long, the Evolution gives you plenty of chain to lock up multiple bikes. It uses an integrated high-security cylinder that is pick, drill, and cut resistant. The links are covered with a weather-resistant nylon sleeve that protects your bike's finish. Three keys are included, including one that has a high-intensity LED bulb for convenient, easy unlocking in the dark. This chain has an anti-theft protection offer.

Kryptonite's Evolution Series 4 1090 Integrated Chain is a 10mm-thick, six-sided link chain made of triple-heat-treated manganese steel for maximum strength. At 35.5-inches long, the Evolution gives you biking security in an easy-to-carry package. The links are covered with a weather-resistant nylon sleeve that protects your bike's finish, and it uses an integrated high-security cylinder that is pick, drill, and cut resistant. Three keys are included, including one that has a high-intensity LED bulb for convenient, easy unlocking in the dark. This chain has an anti-theft protection offer.

- 3mm hardened steel links for moderate security lockups - Includes easy-to-install transport bracket - Includes 2 keys - Key Safe Program - Product dimensions: Length 85cm - Product weight: 1.70 lbs

- 7mm four-sided chain links made from 3t manganese steel - Patent-pending end link design secures chain to hardened deadbolt eliminating critical vulnerability - Hardened deadbolt design provides extra holding power - High security disc-style cylinder is pick and drill resistant - Includes 2 new ergonomic “I” keys - Durable weather-resistant nylon sleeve prevents scratches - Key Safe Program - Product dimensions: 47.3” (120cm) chain length - Product weight: 3.75 lbs (1.70 kgs)

Kryptonite's Keeper 785 Integrated Chain features a 7mm-thick, four-sided link chain perfect for use in low- to moderate-risk locations. The triple heat-treated manganese steel chain has a durable nylon cover to protect your bike from scratches. Plus, it uses an integrated hardened deadbolt that is pick and drill resistant, and it thwarts most leverage attacks as well.

- 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

- 5mm hardened steel links for moderate-security lock-ups - Durable rubber coating on steel links protects the bike frame - Includes new click tight transport bracket - Includes 2 Keys - Key Safe Program - Eligible for the Anti-theft Protection Offer - Product dimensions: Length 100cm - Product weight: 2.65 lbs

Specifications & Features: - 7/10 security rating - 13MM HARDENED MAX-PERFORMANCE STEEL SHACKLE resists bolt cutters and leverage attacks - Patent-pending HARDENED DOUBLE DEADBOLT design gives additional protection against twist attacks - NEW SLIDING DUSTCOVER - NEW DOUBLE DEADBOLT DESIGN - HIGHER SECURITY DISC-STYLE CYLINDER is pick and drill resistant. - Includes FLEXFRAME-U BRACKET providing convenient multi-location u-lock transport - 3 STAINLESS STEEL KEYS — including new key design and one LED REPLACEABLE KEY FOB - Protective vinyl coating - Key Safe Program - Product dimensions: 3.25” x 5.5” (8.3cm x 14cm) - Product weight: 2.65 lbs (1.20 kgs)

Specifications & Features: - 8/10 security rating - 14mm hardened MAX-PERFORMANCE STEEL SHACKLE - 3 STAINLESS STEEL KEYS — including new key design and one LED REPLACEABLE KEY FOB - Patent-pending HARDENED DOUBLE DEADBOLT design gives additional protection against twist attacks - NEW SMALLER CROSSBAR DESIGN - HIGHER SECURITY DISC-STYLE CYLINDER is pick and drill resistant - Includes FLEXFRAME-U BRACKET providing convenient multi-location u-lock transport - Protective vinyl coating - Key Safe Program - Product dimensions: 4” x 9” (10.2cm x 22.9cm) - Product weight: 3.50 lbs. (1.59kgs)

Longer length, easier to lock Bontrager has partnered with ABUS to offer best-in-class bike security. The Bontrager Comp Keyed Chain Lock provides secure protection and industry-leading corrosion protection. The chain is 110cm in length and is made of 4mm hardened steel. It's covered in a fabric sheath to protect your bike frame and give it a nice finished look. Product details - 4mm temper-hardened steel chain links for secure protection in a 110cm length - Fabric sleeve for a classy look and feel that protects bike paint from scratches - Versatile linked-chain design for quick and easy security - Industry-leading corrosion resistance - Includes chain lock and 2 keys (replacement keys available) - Security Rating 3/15: basic security and protection against theft. Great for locking your bike to take a quick stop in low risk areas

Bontrager has partnered with ABUS to offer best-in-class bike security. The Elite Combo U-lock features a 9mm soft-touch steel shackle that resists cutting and double-bolting lock action for added anti-twist protection. Add in industry-leading corrosion protection and a double-layered key cylinder and you get lasting protection with a durable, secure U-Lock. Includes on-bike mount. - 9mm temper hardened steel for secure U-Lock protection in a versatile size - Double bolting shackle provides anti-twist protection - Soft-touch coating for a smooth look and feel that protects bike from scratching - Combo dial features easy-to-read numbers designed to resist wear - Simple mount installs in seconds for simple, versatile on-bike storage - Industry-leading corrosion resistance - Security rating 8

A keyed U-Lock and cable combo that provides secure protection with an easy to carry mounting bracket. The standard in security Bontrager has partnered with ABUS to offer best-in-class bike security. The Elite keyed u-lock features a 9mm soft-touch steel shackle that resists cutting and double-bolting lock action for added anti-twist protection. Add in industry-leading corrosion protection and a double layered key cylinder and you get lasting protection with a durable, secure u-lock. Includes on-bike mount, cable, and two keys. - 9mm temper hardened steel for secure, versatile U-Lock protection with the included cable - Double bolting shackle provides anti-twist protection - Premium double-layered cylinder core provides added protection against picking - Soft-touch coating for a smooth look and feel that protects the bike from scratches - Simple mount installs in seconds for simple, versatile on-bike storage - Industry-leading corrosion resistance - Includes U-Lock, bike mount, cable, and 2 keys (replacement keys available) - Security rating 8

Our most secure U-Lock features 14mm hardened steel construction with a soft-touch coating and comes with a mounting bracket that lets you attach the lock to your bike for easy carrying. Our most secure U-lock We've partnered with ABUS to offer best-in-class bike security. The Keyed Ultimate U-Lock features a 14mm soft-touch steel shackle that resists cutting and double-bolting lock action for added anti-twist protection. Add in industry-leading corrosion protection along with a double-layered key cylinder and you get lasting protection and a top security rating. Product details - 14mm temper-hardened steel for secure U-Lock protection in a versatile size - Double-bolting shackle provides anti-twist protection - Premium double-layered cylinder core provides added protection against picking - Soft-touch coating for a smooth look and feel that protects your bike from scratches - Mount installs in seconds for simple, versatile on-bike storage - Industry-leading corrosion resistance - Includes U-Lock, bike mount, and 2 keys (replacement keys available) - Security rating 13

The Bontrager Kids Combo Chain Lock offers a kid-friendly design with unique color options and symbols on the dial that make it easier for little ones to remember their combination. The 75cm chain is made from hardened steel, and it's the perfect length for function without being bulky. Plus, it's wrapped up in a fun, colored fabric sheath that looks great and protects bikes from scratches and scuffs. - Steel chain links for secure protection in a 75cm length - Unique combo dial features kid-friendly, easy-to-remember symbols - Fun, colorful fabric sleeve protects bike from scratches and scuffs - 75cm length makes lock easy to use without being bulky - Security rating 3

A keyed chain lock that provides secure protection thanks to a durable 9mm hardened steel chain. Our most secure chain lock We've partnered with ABUS to offer best-in-class bike security. The Bontrager Ultimate Keyed Chain Lock offers reliable protection with 9mm hardened steel links and a security rating of 9. It's covered in a fabric sheath to protect your bike frame and give it a nice finished look. Product details - 9mm temper-hardened steel chain links for secure protection in an 85cm length - Anti-drill plate at keyhole provides added protection against picking - Fabric sleeve for a classy look and feel that protects bike paint from scratches - Versatile linked-chain design for quick and easy security - Industry-leading corrosion resistance - Includes chain lock and 2 keys (replacement keys available) - Security rating 9

- Flexible steel cable - 10mm x 5m (10mm x 16.4')

Install or replace all lock cylinders on your Thule products and use the same key for all. - Set of 2 locks, all using the same key - Including grip-friendly Thule Comfort key - Replace the locks in your Thule product in a few easy steps

- 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

Strength and simplicity come together in OnGuard's Akita Combo lock. It's a 6-foot by 1/2-inch thick cable lock that provides sturdy, reliable protection without any keys. All you need is a four-digit number you can remember, which can be reset at any time. The Akita Combo is built tough and easy to use.

This bracket is designed to either mount to your seatpost or top tube. The bracket is designed to hold your lock while you are riding.

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 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 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 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

OnGuard's Doberman is a strong self-coiling steel cable secured with OnGuard's stout X2 double-bolt lock which resists picking, drilling, and cutting. The cable has a tough vinyl cover which protects your bike. For convenience, the Doberman comes with a mounting bracket so you can carry the lock on your bike. And you get five keys, including OnGuard's Microlight key which has a built-in light.

OnGuard's Doberman is a strong self-coiling steel cable secured with OnGuard's stout X2 double-bolt lock, which resists picking, drilling, and cutting. The cable has a tough vinyl cover which protects your bike. For convenience, the Doberman comes with a mounting bracket so you can carry the lock on your bike. And you get five keys, including OnGuard's Microlight key which has a built-in light.

OnGuard's Mastiff Chain provides protection for your bike in high-risk areas. Its titanium-reinforced, 8mm square link chain resists attacks from saws and cutters, while the burly round padlock offers great security. This lock comes with five keys.

- Self coiling cable - High security keyed locking mechanism - High resistance against cutting, pulling and sawing - Tough vinyl cable cover protects bikes and equipment against scratches - Sturdy AllTube mounting bracket - Weatherproof - 5 keys - 0.43KG (0.95 lb) - Limited lifetime warranty

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.

OTTOLOCK is designed for quick stops and protecting against opportunity theft. Starting weight at just 145g and coiling to a compact 3-inch diameter, OTTOLOCK is truly portable and always there when you need it. OTTOLOCK is not a replacement for a U-Lock. For maximum security, use a redundant locking method with both a U-Lock and a secondary lock. See Use Guidelines. - Lightweight: Weighs only 145g - 260g and is easily stowed. So light and portable you won’t even know you are carrying it. - Compact: Coils to a 3-inch diameter. Keep it in or around your saddle bag, backpack, in your pocket, or anywhere you want. - Durable: Chip-resistant Cerakote paint and Santoprene plastic that will not scuff or harm finishes. - Convenient: Keyless resettable combination. - Weight: 18" = 145g / 30" = 175g / 60" = 260g