Kryptonite

The Kryptonite Keeper 785 is a robust chain lock designed for securing bikes, motorcycles, scooters, doors, gates, and fences. Measuring 2.8 feet long with an 85cm circumference, it suits urban commuters and casual riders needing reliable moderate security without extreme bulk.

Standout features include 7mm manganese steel links with four-sided shaping for top-tier resistance to cutting tools and leverage attacks. The patented disc-style cylinder thwarts picking and drilling, while the hardened deadbolt end link removes vulnerabilities, delivering real-world performance trusted by thousands.

Build quality shines with a durable rubber coating and weather-resistant nylon sleeve that guard against scratches and corrosion. At 3.5 lbs, it balances strength and usability, complete with two keys and eligibility for Kryptonite's anti-theft and key replacement programs, backed by a lifetime warranty.

Potential drawbacks include its weight, which reduces portability for light touring, and a 5/10 security rating better for moderate-risk zones than high-crime areas. It may feel bulky for spontaneous errands.

Overall, the Keeper 785 earns high marks for value-driven security. Buy it if you prioritize proven strength and protection over ultra-light design; it's a smart choice for everyday theft deterrence.

Brand: Kryptonite

Special Feature: Portable

Lock Type: Key Lock

Item Dimensions L x W x H: 1.5 x 2.5 x 18.25 inches

Material: Alloy Steel

Chain Length: 2.8 feet (85cm circumference)

Weight: 3.50 lbs (1.59kg)

Security Rating: 5/10

The Kryptonite Keeper 712 Integrated Chain Lock is a robust security solution designed for cyclists, e-bike riders, scooter users, and even RV owners securing generators or gates. With its 48-inch length and 7mm four-sided hardened manganese steel links, it provides moderate 5/10 security rated protection against common theft tools, making it ideal for urban commuters or campground stays where leaving your ride unattended is unavoidable.

Standout features include a patented end link that connects the chain to a hardened deadbolt, eliminating vulnerabilities, and a high-security disc-style cylinder resistant to picking and drilling. Real-world performance shines in customer stories: thieves failed to cut through it on e-bikes at night, and it deters opportunists with its heavy, intimidating presence. Users praise its ability to secure two bikes or wrap in a figure-8 around rims and frames.

Build quality is top-notch with a durable nylon sleeve that prevents scratches on painted surfaces and shields against weather. At 3.7 pounds, it feels substantial and reliable, though the weight and occasional key fiddliness are noted. The black finish matches most bikes aesthetically.

Minor drawbacks include the heft, which some find cumbersome for daily carry, and potential freezing in sub-10F temperatures, fixable with lubricant. Overall, the Keeper 712 delivers serious deterrence and peace of mind, earning its spot as a bestseller in bike chain locks.

Verdict: Highly recommended for anyone valuing security over minimal weight. Its proven track record and Kryptonite's legacy make it a smart investment for protecting valued rides.

Brand: Kryptonite

Model: Keeper 712

Chain Length: 48 inches (120cm)

Chain Thickness: 7mm hardened 3t manganese steel, four-sided links

Weight: 3.7 pounds

Dimensions: 7.09 x 7.09 x 1.18 inches

Lock Type: Pin Tumbler, disc-style cylinder

Material: Alloy Steel

Color: Black

Includes: Two keys, weather-resistant nylon sleeve

The Kryptonite Evolution Mini-7 U-Lock with 4ft security cable is built for urban cyclists and daily commuters who need reliable theft protection without bulk. Its 7mm hardened performance steel shackle and double deadbolt design make it a go-to for securing bikes to street racks, posts, and poles in high-risk city environments.

Standout features include the shackle's resistance to cutting, prying, and leverage tools, paired with a twisting-resistant double deadbolt that locks both sides of the crossbar. The included cable adds versatility for wheels and seats, while real-world performance shines in quick stops where larger locks falter. Users praise its ability to deter thieves effectively in busy areas.

Design emphasizes durability with a weather-resistant vinyl-coated sleeve that guards against scratches and rust, plus a convenient frame-mount bracket for easy transport. The compact dimensions suit tight parking spots, and precision-cut keys resist picking and corrosion for long-term reliability.

Potential drawbacks include the mini size, which may not accommodate very thick fixed objects, and the cable's basic thickness compared to premium options. It also weighs more than ultra-light alternatives, though the security trade-off justifies it for most.

Overall, this lock delivers pro-level security in a portable package, backed by a lifetime warranty and anti-theft coverage. Ideal for commuters prioritizing peace of mind over minimal weight.

Brand: Kryptonite

Lock Type: U-Lock

Special Feature: Cut Resistant

Material: Alloy Steel

Dimensions: 3.27 x 1.18 x 7.01 inches

The Kryptonite Parkview Bike Lock Cable is a versatile 6ft x 12mm braided steel security cable designed for cyclists, scooter users, and anyone securing outdoor equipment like gates or fences. With a 3/5 security rating, it excels as a secondary lock or deterrent in low-to-medium risk environments, pairing well with U-locks for added protection.

Standout features include its cut-resistant braided steel core, protective vinyl coating to avoid scratches, and two keys—one lighted for convenience. Users praise its flexibility for threading through bike frames and racks, sturdiness against casual tampering, and weather resistance that holds up in rain without rust. Real-world performance shines for quick stops at parks or eateries, keeping honest people honest without bulk.

Build quality reflects Kryptonite's reputation, with reinforced end loops, smooth lock mechanism, and compact coiling for portability at just 1.37 lbs. The lifetime warranty and optional key replacement program add value. Minor drawbacks include the cable's tight coil making initial setup fiddly and the key needing precise alignment.

Overall, this lock delivers reliable, affordable security for everyday use. Cyclists seeking a lightweight, multi-purpose cable without premium price will find it a solid choice.

Key Specs:

• Length: 6 ft (1.8 m)
• Diameter: 12 mm (15/32 in)
• Material: Braided alloy steel with vinyl coating
• Lock Type: Keyed with 2 keys (1 lighted)
• Weight: 1.37 lbs
• Dimensions: 7 x 1.35 x 10.5 inches
• Security Level: 3/5
• Warranty: Lifetime

The Kryptonite Keeper 712 Combo Bike Chain Lock is a heavy-duty security solution designed for cyclists who need reliable protection for their road bikes, mountain bikes, e-bikes, or scooters. At 4 feet long with 7mm hardened steel links, it allows you to secure your bike to a wide range of fixed objects like bike racks, poles, or trees, making it a go-to choice for urban commuters and trail riders alike.

Standout features include the end-link locking point, which provides extensive holding power by utilizing the chain's full strength, and 4-sided 3t manganese steel links that are exceptionally resistant to cutting tools. The 4-digit resettable combination lock offers over 10,000 possible codes, ensuring quick access without keys while minimizing the risk of unauthorized entry. In real-world use, this lock performs well against casual thieves, giving owners confidence during short stops or overnight parking.

Build quality shines with its alloy steel construction and compact dimensions of 15 x 4 x 6 inches, making it portable enough for daily carry in a backpack or frame bag. The chain's flexibility combined with durable materials ensures longevity, even in harsh weather conditions.

Potential drawbacks include its added weight from the robust steel, which might deter ultra-lightweight touring cyclists, and the need to memorize or record the combination to avoid lockouts.

Overall, the Kryptonite Keeper 712 earns high marks for balancing security and usability, making it a smart investment for anyone serious about bike theft prevention. Highly recommended for everyday riders seeking dependable chain lock protection.

Brand: Kryptonite

Special Feature: Portable

Lock Type: Combination Lock

Item Dimensions: 15 x 4 x 6 inches

Material: Alloy Steel

The Kryptonite Keeper 510 Folding Lock is a moderate-security option designed for cyclists, e-bike owners, and scooter riders who need portable protection for everyday use in urban, suburban, or rural settings. At 100cm long and weighing just 1.9 pounds, it folds compactly for easy storage in a bag or on the bike frame via the included bracket, making it perfect for short stops like grabbing lunch or shopping.

Standout features include 3mm hardened steel links for cut resistance, a durable rubber coating to prevent frame scratches, and flexible segments that wrap around poles or irregular objects. Users praise its simplicity, with quick folding and reliable locking for moderate-risk areas. It performs well as a primary lock for low-threat spots or a secondary layer alongside a U-lock, offering versatility without excessive bulk.

Build quality shines with a sliding dust cover, two included keys, and eligibility for Kryptonite's Anti-Theft Protection Offer and Key Safe program. While sturdy for its class, it lacks the heft to deter determined attacks with power tools. Some note the bracket can slip on rough terrain without frame mounting points.

Overall, this lock delivers smart balance of security, portability, and convenience for casual riders prioritizing ease over maximum defense. Ideal if you value a lock that travels with you seamlessly.

Brand: Kryptonite

Model: Keeper 510 Folding Lock

Length: 100cm (39 inches)

Weight: 1.9 pounds

Material: 3mm hardened alloy steel with rubber coating

Includes: 2 keys, transport bracket, strap

Lock Type: Key lock, folding design

Dimensions: 25 x 5 x 5 inches folded

The Kryptonite Keeper 12 STD U-Lock with KryptoFlex cable is a moderate security bike lock designed for cyclists who need reliable protection for everyday use. Rated 5/10 on Kryptonite's scale, it suits quick metropolitan stops, suburban hours-long locks, or rural overnight security. Paired with a 4ft braided steel cable, it secures frames, wheels, and accessories effectively without needing additional gear.

Standout features include the 12mm hardened performance steel shackle with double deadbolts that engage both ends for superior resistance to bolt cutters, twisting, and leverage attacks. The disc-style cylinder offers pick and drill resistance, while the vinyl-coated shackle prevents frame scratches. In real-world use, it performs well for low to medium-risk scenarios, backed by programs like Key Safe for free key replacements and optional anti-theft coverage.

Build quality shines with ergonomic stainless steel keys that withstand torque without bending, and the patented snap-in bracket allows hassle-free mounting on bike frames. At 2.1 pounds and 4x8 inch dimensions, it balances toughness with portability, though its weight may feel hefty on extended tours.

Drawbacks include its moderate rating, which may not deter determined thieves in high-crime zones, and the need to register for full support benefits. Overall, this lock delivers solid value for casual to intermediate riders prioritizing convenience and proven reliability over maximum security.

Verdict: Highly recommended for budget-conscious cyclists seeking a trusted name in bike security with practical extras like the cable and bracket.

Key Specs:

• Shackle: 12mm hardened performance steel, 4 x 8 inches
• Cable: 4ft (1.2m) x 10mm braided KryptoFlex 410, double looped
• Weight: 2.1 pounds
• Keys: 2 stainless steel, ergonomic
• Bracket: Side mount snap-in
• Lock Type: Keyed U-Lock
• Material: Alloy Steel
• Color: Black
• Warranty: Limited Lifetime

The Kryptonite KryptoFlex 1218 is a versatile 6-foot cable lock designed for cyclists and outdoor enthusiasts needing flexible security for bikes, sports equipment, gates, ladders, and more. With its 12mm braided steel construction, it provides strong resistance against cutting tools, making it suitable for everyday theft deterrence in moderate-risk areas.

Standout features include a resettable 4-digit combination for keyless convenience, a coiled design that compacts for storage, and an included bike frame mount for seamless transport. The extended length excels at locking multiple bikes or securing gear on car racks, while the flexibility allows it to wrap around irregular shapes effortlessly. Performance-wise, it delivers reliable hold without stiffness, backed by Kryptonite's Combo Safe program for forgotten codes and a lifetime warranty.

Build quality shines with durable metal construction and a natural finish, ensuring longevity through constant innovation from a brand with over 40 years in bike security. It's portable and multi-functional, empowering users to protect valued items confidently.

Potential drawbacks include lower resistance to advanced cutting tools versus rigid U-locks, and the coiled cable might take up more space in tight bags. It's best as a secondary lock or for low-to-medium theft zones.

Overall, the KryptoFlex earns high marks for practicality and value, ideal for casual riders seeking smart, flexible protection without complexity. Highly recommended for daily commuters and adventure cyclists.

Key Specs:

• Brand: Kryptonite
• Model: 005223 KryptoFlex 1218 Combo
• Length: 6 feet
• Thickness: 12mm braided steel
• Lock Type: Resettable 4-digit combination
• Color: Black
• Material: Metal
• Includes: Combo lock and bike mount
• Warranty: Limited lifetime
• Dimensions: 8.27 x 5.51 x 2.76 inches

The Kryptonite KryptoFlex 1565 Key Bike Lock Cable is a compact security solution designed for cyclists who prioritize portability over heavy-duty chaining. At 2 feet long and 15mm thick, this braided alloy steel cable is perfect for quick urban stops, securing your bike to street signs, racks, or fences without bulk. It's ideal for commuters or casual riders needing reliable, lightweight protection for everyday use.

Standout features include its easy click key locking mechanism, which eliminates fumbling, and an automatic cylinder cover that shields against dirt and grime during rides. The included bike mount allows seamless attachment to your frame, while the coiled design ensures it stays out of the way. In real-world performance, it provides solid deterrence for opportunistic thefts, backed by Kryptonite's Anti-Theft Protection Offer and limited lifetime warranty.

Build quality shines with painted alloy steel that's tough yet flexible, maintaining shape after repeated use. The black cylindrical form factor feels premium and fits universally for cycling applications. However, the short length may not wrap around larger poles, and as a cable, it is vulnerable to determined attacks with tools compared to thicker chains or U-locks.

Overall, the KryptoFlex 1565 excels as a convenient secondary lock or for low-risk scenarios, earning its spot in any cyclist's toolkit for hassle-free security.

Key Specs:

• Length: 2 feet
• Thickness: 15mm braided steel cable
• Lock Type: Keyed
• Material: Alloy Steel
• Dimensions: 25.6 x 5.5 x 6 inches
• Includes: Cable Lock, Keys, Bike Mount
• Warranty: Limited Lifetime
• Best for: Cycling security

The Kryptonite Keeper 790 Combo Chain Lock is a moderate-security solution for cyclists securing bikes, e-bikes, scooters, or mountain bikes during quick urban stops, suburban hours-long parks, or rural overnight leaves. Rated 5/10 on Kryptonite's scale, it balances toughness with convenience via a keyless 4-digit resettable combination offering 10,000 codes.

Standout features include 7mm four-sided chain links forged from 3T manganese steel for cut resistance, an end-link locking point that maximizes holding power to fixed objects, and a hardened deadbolt head. The 35.4-inch length provides flexibility for most bike racks, while the weather-resistant nylon sleeve prevents scratches on frames. In real-world use, it performs well for everyday scenarios without the bulk of higher-rated locks.

Build quality shines with a patent-pending lock design, positive dial indexing for easy code entry, and compact coiling for portability despite its 3.8-pound weight. The Combo Safe Program lets you register codes online for reminders if forgotten, and optional anti-theft protection covers losses up to a set value when properly used.

Drawbacks include its moderate security not ideal for high-theft zones and the heft that might deter ultralight commuters. Still, for value-conscious riders in lower-risk areas, it offers trusted Kryptonite durability backed by a limited lifetime warranty.

Verdict: Solid choice for practical, no-fuss bike locking. Grab the Keeper 790 if you prioritize combo convenience and moderate protection over maximum fortress-level security.

Key Specs:

• Length: 35.4 inches (90cm)
• Chain: 7mm four-sided 3T manganese steel
• Weight: 3.8 pounds
• Lock Type: 4-digit resettable combination (10,000 codes)
• Dimensions: 1.18 x 35.4 x 1.18 inches
• Color: Black
• Material: Alloy Steel
• Security Rating: 5/10 (Moderate)
• Warranty: Limited Lifetime

Universal fit for cycling applications including e-bikes and scooters.