Best Bike Locks 2024: Kryptonite U-Locks, Cables & Chain Locks Reviewed

Protecting your bike from theft is crucial, and choosing the right lock is the first step. This review dives into the best bike locks from Kryptonite for 2024, covering their range of U-locks, cables, and chain locks. We'll explore the security features, ease of use, and overall value of each model, helping you decide which lock best suits your needs and budget. From the top-rated New York Forget About It U-lock offering maximum protection, to the versatile KryptoFlex cables ideal for securing smaller items, we’ll analyze the pros and cons of each Kryptonite offering.This comprehensive review covers various security levels, from high-security options for urban environments to more moderate choices for suburban areas. We'll also highlight key features like integrated LED lights for nighttime visibility, convenient transport brackets, and the importance of proper locking techniques for maximizing your lock's effectiveness. Whether you're looking for ultimate peace of mind or a reliable lock for everyday use, this guide will help you find the perfect Kryptonite lock to safeguard your valuable bicycle.

Pros And Cons

Kryptonite KryptoFlex Combo Cable
  • Dual molded raised dials
  • Integrated four-digit resettable combination lock with index number dials
  • Resettable design
  • Combo save program for combination retrieval
  • Variety of lengths (2-10 feet)
  • Variety of widths (10-15 mm)
Kryptonite New York Forget About It Lock
  • Scores 10 out of 10 on security rating
  • Double deadbolt design (locks on both sides of shackle)
  • Three stainless steel keys (one with LED light)
  • Key replacement available upon online registration
  • Dust cover to prevent dirt and grime
  • Kryptonite lifetime warranty
  • 18 mm triple heat-treated steel
  • Oversized hardened steel crossbar
  • Interior locking dimensions of 3.75" x 6"
  • Strongest lock Kryptonite makes
Kryptonite KryptoFlex Key Cable
  • Light and convenient
  • Flexible
  • Two easy-to-use reversible keys
  • Key replacement available upon online registration (Key Safe program)
  • Variety of lengths (2-10 feet)
  • Variety of widths (10-15 mm)
  • Only for deterrence, not ultimate security (rated 1-3 depending on width)
Kryptonite New York Standard U-Lock
  • Rated 9 out of 10 on security scale
  • Double deadbolt design
  • Three stainless steel keys (one with LED light)
  • Free key replacement upon online registration
  • Sliding dust cover
  • Transit Flex frame bracket included
  • Lifetime warranty
  • 16 mm hardened steel shackle
  • Interior locking dimensions of 4" x 8"

Read more: Top 5 Folding Bike Locks for Ultimate Security

Kryptonite New York Forget About It U-Lock: Ultimate Security

The Kryptonite New York Forget About It U-lock is marketed as their strongest lock, scoring a perfect 10/10 on their security rating. Its double deadbolt design and 18mm triple heat-treated steel shackle offer serious protection against theft. The included LED key is a practical touch for nighttime use.

Nick, Kryptonite General Manager, introduces the New York Forget About It U-lock.
Nick, Kryptonite General Manager, introduces the New York Forget About It U-lock.

Additional features include three stainless steel keys (register them online!), a dust cover to protect the keyway, and a lifetime warranty. The large interior dimensions (3.75" x 6") make it difficult for thieves to use tools to pick or break the lock. This U-lock is ideal for urban environments or anywhere high security is needed.

Close-up of the New York Forget About It U-lock highlighting its robust build.
Close-up of the New York Forget About It U-lock highlighting its robust build.

Kryptonite KryptoFlex Cables: Secondary Security & Convenience

Kryptonite KryptoFlex cables are lightweight and flexible, perfect for securing smaller items or as a supplemental lock. They're available as key or combination locks. They are not designed for primary security but rather as deterrents.

Close-up of KryptoFlex key cable and its keys.
Close-up of KryptoFlex key cable and its keys.

The KryptoFlex key cables come with two reversible keys and are part of the Key Safe program (register your keys!). KryptoFlex combo cables feature a four-digit resettable combination. Both are available in various lengths and thicknesses (10mm to 15mm). Remember to register your combination online as well.

Extreme Bright AlumaLock: Illuminated Combination Cable Lock

The Extreme Bright AlumaLock is a unique combination cable lock with an integrated LED light. It's designed to be strong, durable, pick and drill resistant, and able to withstand a 650lb pull test. The built-in LED illuminates the combination dial for easy use at night.

The AlumaLock cable showcasing its length and durability.
The AlumaLock cable showcasing its length and durability.

Made from high-quality military-grade braided stainless steel, this lock boasts impressive length (over 3.5ft when extended). It offers a resettable combination, a lifetime warranty, and a free replacement guarantee if the light fails. The combination of security and convenience makes it a standout product.

KryptoLok Series 2 Standard U-Lock: Moderate Security

The KryptoLok Series 2 Standard U-lock is rated a 6/10 on Kryptonite's security scale, making it suitable for moderate security needs. It features a bent foot shackle for easier use and comes with two stainless steel keys (register them online!). A sliding dust cover protects the key cylinder.

Close-up showing the bent foot shackle.
Close-up showing the bent foot shackle.

It also includes a Transit Flex frame bracket for convenient transport. While not as robust as the New York Forget About It, it offers a good balance of security and convenience. It's backed by a lifetime warranty, making it a reliable option for suburban or shorter metropolitan lock-ups.

KryptoLok Series 2 Integrated Chain: Secure Chain Lock Best Practices

Daryl emphasizes the importance of proper lock-up techniques when using a chain lock, such as the KryptoLok Series 2 Integrated Chain. Always lock to an immovable object, in a well-lit area, and secure the frame, rear wheel, and front wheel. Avoid slack in the chain.

Daryl introduces proper chain lock-up techniques.
Daryl introduces proper chain lock-up techniques.

The video stresses that proper locking technique is just as important as the lock itself. A strong lock used incorrectly is less effective than a moderately secure lock used correctly.

Kryptonite New York Standard UL U-Lock: High Security for Urban Areas

The New York Standard UL U-lock receives a 9/10 security rating, making it suitable for high-risk areas like major cities and college campuses. Its double deadbolt design enhances security, as do the 16mm hardened steel shackle. It includes three stainless steel keys, one with an LED light.

Pete introduces the New York Standard UL U-lock.
Pete introduces the New York Standard UL U-lock.

Similar to the Forget About It, this lock also has a sliding dust cover and Transit Flex frame bracket. Remember to register your keys! Backed by a lifetime warranty and offering interior dimensions of 4" x 8", this lock provides superior protection.

Close-up of the lock demonstrating the double deadbolt design.
Close-up of the lock demonstrating the double deadbolt design.

Conclusion: Choosing the Right Kryptonite Lock for Your Needs

Kryptonite offers a range of locks catering to various security levels and budgets. The New York Forget About It provides the highest level of security, while the KryptoLok Series 2 offers a more moderate option. KryptoFlex cables serve as excellent secondary security measures or for securing accessories.

The Extreme Bright AlumaLock stands out with its integrated LED light, while the New York Standard UL also offers strong security, particularly suitable for urban environments. Always consider your riding location and the value of your bike when selecting a lock, and remember to use proper lock-up techniques.