– 12mm hardened performance steel shackle
– New hardened double deadbolt design with anti-rotation to resist against twist attacks
– Disc style cylinder with center keyway
– Includes side-mount snap-in bracket
– Includes 4′ flex cable for securing front wheel or other accessories
– Includes 2 stainless steel keys with an ergonomic design to reduce torque and keep them from bending or breaking
– Key Safe Program
– Product dimensions: 4” x 8” (10.2cm x 20.3cm)
– Product weight: 2.40 lbs (1.09 kgs)
Kryptonite Keeper STD W/4′ Flex
$84.99 Original price was: $84.99.$59.49Current price is: $59.49.
SKU: KEE22782766E Categories: Accessories, Locks/Security
- Quality Products, Quality Service
- Free 1 year warranty period
- Nature-friendly materials, for a better planet.
- Buy with Confidence, Get Quality

16 reviews for Kryptonite Keeper STD W/4′ Flex
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John D. –
The Kryptonite Keeper STD with 4′ Flex is a solid bike lock. The flexibility makes it easy to secure my bike to various poles and racks. Feels sturdy and reliable.
Sarah M. –
Great lock for the price! The 4-foot flex cable is long enough to secure both wheels and the frame. The locking mechanism is smooth and durable.
Mike T. –
I’ve been using this lock for a few months now, and it’s held up well. The flexibility is a big plus, but I wish it came with a mounting bracket for easier transport.
Lisa K. –
The Kryptonite Keeper STD is a decent lock, but the flex cable feels a bit thin. I’d prefer a thicker cable for added security in high-theft areas.
David P. –
This lock is perfect for quick stops. The 4′ flex is versatile, and the lock itself is easy to use. Highly recommend for urban commuting.
Emily R. –
I love the flexibility of this lock, but the key is a bit stiff. It takes some effort to turn, which can be annoying when I’m in a hurry.
Carlos G. –
The Kryptonite Keeper STD is a reliable lock for everyday use. The flex cable is a game-changer for securing my bike in tight spaces.
Anna B. –
Good lock overall, but the coating on the flex cable started peeling after a few weeks. Still functional, but not as aesthetically pleasing.
Tom H. –
This lock is a great balance between security and convenience. The 4′ flex makes it easy to lock up anywhere, and the build quality is solid.
Nina L. –
I’ve had no issues with this lock so far. The flex cable is sturdy, and the lock mechanism works smoothly. Definitely worth the investment.
James W. –
The Kryptonite Keeper STD is a good lock, but the flex cable could be more resistant to cutting. It’s fine for low-risk areas, but I’d use something heavier for high-theft zones.
John D. –
The Kryptonite Keeper STD with 4′ Flex cable is a solid choice for securing bikes. The flexibility of the cable makes it easy to wrap around various objects, and the lock itself feels sturdy. However, it’s a bit heavy for my liking, which can be a downside if you’re carrying it around often.
Sarah M. –
I’ve been using the Kryptonite Keeper STD for a few months now, and it’s been reliable so far. The 4′ Flex cable is a great addition, providing extra security. The lock is easy to use, and the build quality is excellent. Definitely worth the investment for peace of mind.
Mike T. –
This lock is good for its price, but I expected a bit more durability. The 4′ Flex cable is handy, but the lock mechanism feels a bit stiff sometimes. It does the job, but I’m not entirely convinced it’s the best option out there.
Emily R. –
The Kryptonite Keeper STD is a fantastic lock for everyday use. The 4′ Flex cable adds versatility, allowing me to secure my bike to different types of racks. The lock is robust and gives me confidence that my bike is safe. Highly recommend!
David K. –
I bought this lock based on the brand’s reputation, but I’m a bit disappointed. The 4′ Flex cable is useful, but the lock itself feels less secure than I expected. It’s okay for low-risk areas, but I wouldn’t rely on it in high-theft locations.